Why does it seem like we are all so inclined to pick a side and and dig in, defend it and block out anything that comes from "the other side"? It is obviously the case in U.S. politics these days.  You pick a party/candidate and only listen to points coming from their "side".  Everyone denies they do it but most get caught doing exactly that. It isn't just politics though.  If you aren't ready to declare your support of gay marriage then you're a homophobe.  If...