Twenty or so years ago, he would probably not get drafted and no team would take a risk on him after the draft. Today, society has lessened a lot on this topic and it isn't a big deal anymore really. I bet there are a few playing now and a number of the players today are probably friends with someone who is gay, if not a family matter. The people most likely to have a problem with this is the older guys, scouts, executives, etc. The players are from a different generation and should not be shocked by this.
All it would take is for a player show up to camp, listen to the media for a couple of weeks and get to know his fellow players and it will all blow over. It will probably be tense at first, but guys don't hold grudges, we get over things easily. If he shows up, practices and plays hard, he will be accepted in the locker room eventually.
Dallas should take a chance on him late in the draft if available and we might as well go get Incognito to shoulder some of the media scrutiny