It's really all down to your tone and attitude. If you're hostile, demanding and negative, you will indeed get pushback, but that's human nature.

Some people feel that they should get to act like a prick, while everyone else should be humble and courteous.

If you act like a decent person person, there's no problem pointing out weak points in Julia and request help to work around it. If your only input is "Julia kinda sucks", what kind of feedback do you feel that you are owed?

There was a recent post in Julia's Discourse about why people think the language has not caught on as much as it should. There were around 550 comments where half of them talked about why Julia sucks and what to do about it, there are spin-offs of the post continuing discussion. Let's just cut the bull shit, these are all tools, if one doesn't fit you just use the other.