Okay, you're allowed to, but can't tell you that people aren't going to call you out on your jumping to conclusions when we know so little. Drawing conclusions when there's not substantial information available will garner you people who will accuse you of jumping the gun, that's how it works.
I say wait until the game actually comes out before making up a proper conclusion and already saying negative things about characters in their thread.
This.
Also, just because we are, say, qunari (or whatever race) doesn't mean Solas sees us as just a qunari. We likely have a great chance to be a person he will respect, admire, and fight for. We might even be a close friend, confidant, etc. We're just not necessarily someone he wants to sleep with. Or pursue a relationship with. There are plenty of people in my life I feel this way about, and it isn't because I'm close minded, or because I only see these people as (enter physical descriptor here). It doesn't make me a hypocrite if I want to be seen as more than a pre-specified label. And as some have mentioned, real life race is a poor comparison. There really is none in our society we can use. These are different species. And until we know what Solas' reasons (which are supposed to be interesting and SUPER story related) are we shouldn't be do quick to dismiss his character.
Him not being bisexual is a separate issue, and one i can sympathize with. In real life, yes, people are straight because they are and need no further explanation. But this is a fictional character, and a game where inclusivity is supposed to matter, a lot, so I understand the frustration at the lack of equal (based on actual real life) options.