While I understand your reasoning (avoiding discussions with stupid people), I sometimes think that such experiences tell us a lot about the people we would like to get support from.
It is amazing that people are willing to spend money for creators they probably don’t know personally and most likely never will meet.
But because they don’t know you, there is this anonymity in between you. People can not know how much money a creator makes, even if they see the earnings on Patreon. Maybe that’s just the icing on the cake, maybe the 5000 Dollar a month people make on Patreon are just for beer, because those creators make millions on Youtube already. Maybe those 200 Dollar are just parking dimes for you.
Note: I am not saying this is a sound position to take. I am just trying to paint a picture: The same way the supporters/backers/patrons don’t know the creators they support, those creators don’t know anything about their supporters.
An incident like the one you describe does give you a glimpse into how those people think. You may not like it, I wouldn’t either. But it is an insight that we usually don’t get, so there is some value in it.
On the web there are various depictions of what the production of a movie costs. It could help linking to one of those to give an estimate of what costs even a short movie might need. I do work at the edge of the movie industry, I have a pretty good idea of what time- and money investment is required there, yet, I can feel some sympathy with 5-6 years old, uneducated kids of street gang members for whom 200 Dollar are “the mother of all richness”.
What I am saying is - I fully agree that one should not put too much effort into explaining simple things to people who don’t want to learn in the first place. Waste of time. However, understanding that those people may still be supporting you, there might be a compromise to find - maybe create a simple drawing that explains the cost structure for what those people cry for.
After all, the loud and stinky ones may be annoying, but taking the oportunity to explain something to those who don’t rip their mouth open but may feel like they don’t get what they pay for, might be a win:win:win for all.
Just a thought. As always.