It is the numeric majority in what has been presented thus far, Your blatant misuse of my own words to belay that very notion doesn't make it so, its compounded evidence, not fallacy.
No, I know what you mean and I still say you're wrong.
The Dalish we have been shown so far have been on the less than the warm and welcoming side, it's true. However, devs, codexes, DA characters' testimonies, etc. have said that not all Dalish are like this. They've said that the Dalish are people with varying degrees of kindness, friendliness, and acceptance just like people of every other group. So the "numeral majority" we've been shown does not reflect the majority or entirety of Dalish as a people. If the devs said the Dalish we've seen represents how most or all Dalish are, you might have a point. Since they don't, it's not so. On a more literal sense, the 2-3 Dalish we've seen are not a "numeral majority" within the universe itself unless there really are only 3-4 clans in all of Thedas. (I seriously doubt this.)
Either way, the ones we've seen do not represent all Dalish. Not based on what the devs have said, and not likely based on how many there are within the fictional universe. So, categorizing all Dalish as X based on the small sample we've seen is biased and fallacious.
Again, if you're going to negatively categorize all Dalish as X (say, intolerant) because a few people in their culture act like that and/or one aspect of their culture promotes isolation, you'd better start negatively categorizing all humans, Andrastians, etc. (say, intolerant) because of the few nut balls in their ranks and/or the one aspect of their religion that promotes proselytizing.