Google and Microsoft didn’t “kill” the decentralised e-mail of yesteryear. They beat it fair and square

Sure, they might’ve cornered the market fair and square, but they’re certainly doing anticompetitive things in keeping it cornered.

Just try setting up a mail server not connected to any of the big corpos (Google, MS, Cloudflare or their clients with more niche marketing) and see who will actually recieve your mails. You most likely won’t land into the Spam folder either.