I do not know Rush personally so I have to believe his silence has do to with the entertainment industry. Entertainment is a niche industry for gays. Anyone who doubts that Rush is an entertainer is too caught up in adoration for the man. He is a pioneer in political talk radio as a entertainment medium. But, he is in an industry dominated by gays, so he keeps his mouth shut.
I have no use for moral cowards. Especially if they tout themselves as “conseravtive”.