That's actually the only thing in universe I dislike about the species' presentation. They have done practically nothing to deserve their reputation or the horrible treatment they recieve, and so the "racism is bahd" metaphor seems ham fisted and forced even by modern Western standards, let alone 150 years in the future.
Wait, so that whole thing in ME1 about racism was some kind of deep metaphore using alien species instead of human races and cultures? Gee, considering the ammount of outright anti-human xenophobia my Shepard was targeted with by multiple members of several species I assumed BioWare was trying to make me turn the character into an anti-alien xenophobe himself because racial nationalism is da sheet and all that. Lord knows it would have been justified.
Until the Reaper showed up I assumed the Turians, Salarians and Asari were to be the villains of the story, and the main conflict was to be a comming war between Citadel and the Alliance. The human character I liked the most was Ashley precisely because she seemed to give as much of a f*ck about aliens as they did about us and was not afraid to say it, I even assumed there would be a mission to help Terra Firma somewhere down the line and expected a serious watershed moment were Shepard would walk the steps of the Normandy's CIC and read the Cerberus Manifesto to his crew with inspirational music on the background.
No, I am not kidding, my initial assumptions given what I was presented from the setting were those.
When a Krogan and a Turian waltzed into the Normady on Shepard's orders it was a really big "wtf?!" moment for me back then.
Perhaps they were just a tad too hamfisted about message delivery? I will grant I was younger and stupider back then...but still.
I don't demonize the Quarians, I just don't think of them as space woobies.
What is a "wobbie"?
And I think that like everyone else they are not as wide-eyed naive and innocent as they may present themselves.
Exactly which Qurians in the game "present themselves" as either "wide-eyed naive" and/or "innocent"? They seemed like a pretty down-to-earth, grim, practical and militaristic people to me with a good load of scientific curiosity/expertise and some spirituality added in to make their shitty existence more bearable. The individual Quarians we meet do seem to have a wider latitude of opinion than most ME aliens, even about preeminent matters affecting their lives as a whole. But they also can be quite uncompromising and vicious when percieving their in-group is being threatened.
What culture living under effective military rule for 300 years and with death just a suit rupture or airlock failure away can be described as naive or innocent?
I mean, this the Mass Effect franchise we're talking about, right? Just want to make sure. Are there any dreamy, naive, innocent Quarian elves skipping around peacefully along the meadows carefree, luminous and content in some other franchise I haven't heard about?
No seriously. The first Quarian I met had been dealing with the gosh-darned Shadow Broker and was shotgunning people in our first encounter.
The first Quarian *group* I met pointed guns at me, because some dudes of an organization I was working with had hurt some Quarians some time gone in an event I knew absolutely nothing about, and it was only the presence of a Quarian friend among them that probably prevent a shootout, even then she only defused the situation by pulling military rank on her own people.
If that is Quarian innocence or naivete then I don't wanna see Quarian shrewdness or deviousness...wait, I *have* seen it, more than once in fact. First when they were playing military politics and propping up a kangaroo court trial to throw a friend of mine under the bus; and then there was that small matter of one of their admirals, an ally, trying to blow up a ship with me inside it when the reason I'd gone aboard it the first place was to help his gosh-darned people in a do-or-die mission against crazy homidical synthetics.
And just how many non-Quarian "wide-eyed naive and innocent" supreme Admirals does Shepard get to punch in the gut with quicktime events because he simply looses his sh*t with their antics?
Oh wait...you meant Tali right? Well you see, girls just leaving pubescence behind do tend to be a bit...romatically inclined and dreamy sometimes, many like mushy soap operas about estranged lovers and that kind of sh*t and hope to meet a man that will swipe them off their feet (despite how much they may deny it), etc. And young people in general do tend to be more naive than fully mature and experienced adults. Especially those brough up in sheltered in-group environments that lack any sort of out-group presence or any cultural diversity whatsoever such as an isolated farming community, or..gee, the freaking Migrant Fleet for example. Said youths also tend to look like a fish out the water and lack social acumen when first visiting multi-racial, multicultural metropolises such as New York, Los Angeles or...gee, the freaking Citadel Space Megastructure. Who knew?
Even so, Tali was that first Quarian I met who was shotguning sentient beings to their deaths...but ah! how my heart aches for that innocent naivité of the wild-eyed days of Quarian youth.
Slight segway btw, isn't basing your opinion of a species on a single immature member of it a biogted and racist attitude? tsk, tsk. 
Dude, my jokes apart, you don't have to like them, or any other ME aliens. But the problem ain't that you're demonizing Quarians, you're misrepresenting them in such an grostequely extreme manner it is laughter-inducing. You might as well critizice the Krogan because they aren't as soft-spoken, diplomatic and non-violent as they may present themselves; or the Asari for not being as chaste, humble and masculine as they may present themselves. While you're at it please tell the Elcor to speak slower and tone down that irritant high-pitched voice of theirs, I can hardly understand even the intent of what they are saying. Cheers. 