The overwhelming majority of all the right-wing men I’ve ever met have been a thousand times more miserable, angry, and bottled up than their left counterparts. The right wing inherently fosters that kind of existence with its rigidity, judgment, paranoia, and aggression.
Starting by removing the association between masculinity and being a bigot by changing male social behavior seems to be the logical first step. The change absolutely has to come from within. Starting by not tolerating it when your buddies say bigoted shit seems insignificant but is a huge step in the positive direction, and every small change counts.