imo the way you feel about groups it's fully socially acceptable to hate (like children or polyamorous people, among others) is the canary in the coal mine for underlying bigoted beliefs. if you're only supportive of marginalized groups when it's cool to do so, probably you don't actually care about marginalized groups, you care about other people thinking you care
You don't even have to LIKE them. Just don't hate, don't discriminate, don't mistreat. You find kids annoying? Fine. Just let them be and move on with your life. You *hate* kids and want them banned from airplanes or something? Well then you're just an asshole.
















