Normalization of any deviancy is an extremely slippery slope, and is destructive to the fabric of any culture. Homos are a blight on society, and normalize sexual hedonism while destabilizing and trivializing the very structure of civilization, the nuclear family and the institution of marriage. The only reason "conservatives" say this is because it's become so normalized societally that they're no longer able to oppose the fags without being pushed to the political margins and ruining their viability as candidates. Further, homosexuality is a social contagion, both through societal pressure and molestation, resulting in its acceptance corrupting others who wouldn't have otherwise been affected.
It's expedient and trendy to say "what about the good gays" or approach them with a libertarian mindset, but their insistence upon recognition has led to where we are currently through the moving of goalposts. Our society now deems any judgment as unacceptable, our permissiveness dooming us. The argument can truly only be applied that they're 'harmless' if they live their lives in silence and shame amongst each other, but that all went out the window when they started demanding representation, stopped denying their faggotry, celebrating their lifestyle, having giant parades, forced themselves into marriage, and had every company in the world change their logos to rainbow colors every June.
Anybody "tolerating" any of them then complaining about the state of things is no more than a useful idiot perpetuating societal decay.