I had the thought that the only way to really fight against large corporations and billionaires is to compete against them. Start your own business. Amazon relies on third-party sellers more than anything in their business. So start a business and sell your items there. Don’t have anything to sell? People are a creative bunch, make something. Find a local producer of something and make a partnership to sell on an independent web site.
And how’s that been going for you? When people shout enough, the ones that need to listen start to tune it out. But start hitting wallets? Can’t tune that out.
What you propose isn’t hitting wallets, it’s refilling them