Art, or the more general "thing someone has made" that you're referring to, can be judged independently of the person. A terrible person can make beautiful music. Much of our cultural heritage was made by people who are rightfully considered to have problematic views, if for no other reason than they were more common then.

Then there's art as a commercial product. You can't separate the product from the manufacturer. There's no way to give someone you think is bad money that doesn't detract from your statement of disapproval.

Then there's crime and piracy. When it's media piracy I'm pretty ambivalent. Seems easier to just not consume stuff made by people you don't like, but I don't think it's "support" in the way that paying is.
When it's stealing actual physical things, that's just enjoying the good thing and actually costing them money, which is clearly not supporting anyone. That just kinda makes it funny.
At the extreme end is stuff like "that's our confederate flag. We got it when we shot a bunch of confederates and took their flag". Clearly not supportive.