I'm a person who likes to support causes and show more support for them (usually stuff for veterans and animals) but a specific Q post comes to mind in which he says to beware (or be mindful) of paytriots.
I like others want to be able to show support for a movement/cause and I also am an artist. Would designing things and selling them make me a paytriot?
If greed isn't on your mind and you are producing good art for a fair price, not price gouging or taking advantage of people in a way which you think is bad, then I think you are morally fine. It's a free market mostly, if people like your stuff they are welcome to buy it, nothing wrong with making profit off of a non-zero sum transaction that leaves both parties feeling like they got a good deal and are better off.