Invisible Bias

Building off the Dish's NPR thread, David Link claims admitting bias is often impossible:

Lesbians and gay men do exist, do fall in love, do form relationships, do raise children.  The law’s neglect of them is now clear to anyone who wants to see it. But those who keep their blinkers on do, in fact, begin to look biased, look like they really don’t want to see something that is right in front of their eyes. Perhaps that isn’t really bigotry or hate, but it looks so willful, so harsh, so mean.