I mean, many of the people on this website are the people who work for and enable these very companies in their injustice. The first step is to accept that, if you work for one of these companies, you are the injustice. "But I only work there, I don't make decisions!" people will claim; yet, at the end of the day, they are not only directly enabling these injustices but are very directly benefiting from them! We need to stop talking about these big tech companies as if they are abstract all-powerful gods acting from afar... somewhere, there is a software developer--with a human name--who built this automatic ban system.
At the very least, if you have any friends who work for these companies, and if they aren't actively working from within to make something better--or like... don't have some pretty epic sob story about how they can't get another job and really really need the money for some reason (I'm going to leave this exact line up to the reader, as it is frankly negligible: the vast majority of the people who work at these big tech companies are not hurting for the money and are often part of a whole host of other problems in localized inequality)--it should be made clear to them that you are not OK with their moral tradeoffs.