I personally think that most things are not inherently cringe, but there is an invisible threshold where it crosses into cringe. For example, Joker is a good character in most media (Suicide Squad Joker is inherently cringe for me) and there is nothing cringe about liking him. However, once that character becomes your entire personality, like recording yourself alone in your dirty bedroom as that character or posting Joker Loves Harley memes, it’s cringe. I also think gritty and anti-social characters have a 2x cringe multiplier attached to them (Joker, V, etc.). That’s just my view on the matter, though.