Peaceful co-existence, yes. Consensus, hell no. I don't want everyone to agree about everything. Not only is it boring, but it's corrosive to discourse, in many contexts. It's easy enough to say you want consensus on the theory of evolution, to take a simple case. There is a clear right side and wrong side, generally speaking. Not so easy when you're talking about the Atlantic slave trade. Or the Allied response to Hitler invading Poland. Division, comparing and contrasting ideas and arguments even vulgar or ahistorical....that's one of the vital ways of making progress.
Frankly, I think we're talking at cross-purposes. Ftr I'm not talking about racism, bigotry, segregation, nationalism, or any of that crap. I'm talking about politics. It doesn't exist without division. Hirsi Ali may be bigoted, racist or whatever but it is fatuous, imo, to say we shouldn't pay attention to her because she is divisive.