There's nothing wrong with healthy debate about languages. Definitely there is some religious stuff that enters the discussion, but I find critique, even more so of popular languages that should have enough "confidence" not to care if someone criticizes, is generally stimulating

It's okay to not like things. Just don't be a dick about it to the people that use them or imply that the people that use them are lesser because of it. The people that use those things almost certainly agree with you, but leading into conversations with toxicity makes the introspection part of people's brains turn off. If you want to have a productive conversation about something, doing that is antithetical to your goals.