That's not the issue. The issue is that as more of the web uses cloudflare, it becomes a gatekeeper of the web. Any person that cloudflare kicks out will be cut off from much of the web. (It's already happening, with people having to solve captcha like it's their day job)

Even if cloudflare doesn't misuse their power, something worse happens. Cloudflare becomes an easy OFF Switch for laws, warrants and copyright trolls to track people or kick both content and people off the internet.