I think the point people are making is that the system in general is so rigged and there are so many bad actors that it’s basically impossible to find something else that is more ethically managed while getting a very similar good/service/whatever.

Do I support the US giving Israel billions every year that then gets used to kill and rule over Palestinians? Nope but I still have to pay my taxes! If I decided to not pay because of that, I’d go to jail. So even though I’d like to not support such a system, the effects of not supporting such a system are too much of a cost for myself. (In the same way for others with goods or services or whatever - penalty for non-participation in whatever is too high)