AITA for making a stupid reference noone remembered?

Hi This community seems empty as of yet, but let me begin.

I made this comment. It sounds pretty assholy as is, I agree. That's on me, I phrased it badly. It should at least have an /s or a hyperlink to the reference. I realize that now, but I can't fix it since they banned me for it.

I would love to explain myself, because it is actually a reference to this comment made by the trainer of FC Barcelona in 2018. I thought it was a well known racist rhetoric, but apparently I was wrong. I thought it was fitting for a meme ([insert minority] and normal people), in a sense that the best way to depower them is to make fun of them.

I think I'm just stupid, but not an asshole, am I?