Of course it's cloudflare's fault. They monetized and scaled a service that blocks humans from interacting with websites.
They're also essentially a deanonymization reverse proxy that can track everyone's browsing history and decide whether you get to see websites based on social credit.
That I'm not so sure about. If they get too block-happy they'll lose customers.
But I don't think they care if they block firefox users, or people who delete cookies, or VPN users, or Tor users, or people who resist fingerprinting, or people who block ads, etc.
They're also essentially a deanonymization reverse proxy that can track everyone's browsing history and decide whether you get to see websites based on social credit.