Well yes it is, and I've met a number of people who genuinely answer no to that question. However you're dodging the point; we've had mages express the desire to dominate and isolate, have we had a single mage express the desire to integrate?
EDIT: I've actually found a better comparisson. Going to school, and indeed throughout my hometown, we have a number of insular ethnic communities. While it's fair to say these communities are insular because others don't try to associate with them, it also can't be denied that they have no desire, nor make any effort, to associate with anyone else.
I'm wondering, rather than accusing, if the case with the mages is similar in that while yes the common folk aren't welcoming of mages the mages themselves have no real desire to be welcomed.
How about Wynne or the loyalists? We don't meet many loyalists, but they do exist. Keili is generally used to showcase how little self-esteem mages have about themselves by growing up in a society that tells them they are a curse in the Maker's eyes and their very existence is wickedness and misery. But she is also a mage who follows the Chantry to the letter, and given the events of Asunder, will probably be one of the first to be killed or tranquilized simply for being a mage.
Then we have Finn in Witch Hunt. He was a mage who was more than happy to be in the Circle, and through good behavior managed to get permission to leave for research. It helped that he had a large dislike of the outdoors to begin with, but he is a mage who gets along well with the templars and has an easy-going relationship with the Knight-Captain.
Wynne in the epilogue for a mage warden, should the mage warden decide to rejoin the Circle, says the Warden can change the Circle for the better from the inside and through cooperation.
The college of Cumberland was going to vote on mage independence, but even Anders says total liberation from the Chantry would result in a slaughter (which it has) so the key is compromise and cooperation.
There's the Mages Collective in Ferelden, who take care of problems before the Chantry gets involved, showing the people that mages can be trusted and aren't to be feared just for being mages. They follow the Chantry teachings and police their own, but only want more autonomy than the Chantry grants them.
There's a lot of instances where we see mages act or speak out against total liberation and/or show that free mages aren't another Imperium.