When I really couldn't feel united with other Christians.
There's a forum I'll not name, with some great brothers there. And there are some that belong to their country and party first and Jesus second. There are worse things they could support, I guess, but it's a deeply frightening thing to behold. It's the same kind of faith that would enable deeply committed catholics to burn protestants at the stake, and (I'm being generous here) enable Martin Luther to murder anabaptists.
Time to move on, before I say something I'll regret.