Also, I think it's important to say that I do in general agree that Damian probably wouldn't celebrate christmas in any meaningfull way and depicting him as doing so can infact be problematic.
I personally don't take offense with christmas hats, but that's because I come form a half white background, growing up in a christian centric country. I get that my view of things is framed by my up bringing.
I also don't really view christmas hats as anything connected to the religion itself, but rather to the commercial aspect of it.
And my dad has been acting as Santa during several charity events over the years despite being converted Muslim.
So I just kinda grew desentizised to it I guess.
However even I know how frustrating the generalization of christianity can be. I had to deal with several people asking me why I don't celebrate christmas, some of which I already told I and my family are Muslim, even from fellow Muslims who grew up here. Telling me stuff like "But you can still celebrate!" Which, I guess we can in theory, but we don't? We haven't celebrated christmas in the traditional sense ever.
My parents just bought us presents when we were little so we wouldn't feel left out, we never had to wait till morning to open them, or were made to believe that Santa was real, we just had a fun family evening and once we grew older and understood that christmas just isn't a holiday we celebrate and we didn't get sad about not getting presents like other kids, we just stopped.
There really shouldn't be anything to saying "we don't celebrate christmas" but alas people are still being weird about it.
This wide spread generilization of christmas, the main christian holiday, as some universal thing everyone can celebrate, while people keep being ignorant to other cultures traditions and holidays is bound to make people uncomfortable.
Especially with christianty's history in religious opression and colonization all over the world.
Seeing this extended to fictional characters we share ethnicity and or even believe systems with can be super disheartening.
It's like, yeah, sure, you don't have to be christian to celebrate Christmas I guess, but you also shouldn't have to celebrate christmas as a none christian.
Seeing people then draw fictional non christian characters celebrating the holiday, especially christian artist, is pushing a narrative that just futhers a social presure where not celebrating this holyday of a religion you are not part of is viewed as strange and questionable.
This entire thing of "christmas is for everyone" long since stopped being about "sharing" the holiday and is more about forcing it onto people.
And seeing the relationship Christianity has shared with Judaism and Islam over the last centuries?
Yeah. Of course people are starting to get pissed about this. It's like a person who constanly has punched you in the gut in the past suddenly forces you to attend their birthday party while being passive aggresive as fuck about it.
It's just natural that people are uncomfortable and you probably should stop doing shit like this just because you don't understand their standpoint.