My wife wants to divorce me over my gay son. Helppp?

Holy f*cking Sh*t. . . . Tell your wife to calm down and think about it for a while, maybe a year. This seems like she is just having a large knee jerk reaction here. Remind her that it is both yours and her son and you can't give up on a child just because something unexpected like this pops up. Get on to your older son when he makes a mockery of your younger son, don't tolerate it in the house.