Regardless of whether or not you provide your own SSL certificates, cloudflare still uses their own between their servers and client browsers. So any SSL encrypted traffic is unencrypted at their end before being re-encrypted with your certificate. How can such an entity be trusted?
They think it’s not a problem for them. Because they think that:
This reminds me of current situation with “AI”: There is OpenAI/Anthropic with their APIs (requests are sent via HTTPS but OpenAI/Anthropic are not only need to have access to do their work - they also censor it). There are paid-for alternatives who either host proxies for OpenAI/Anthropic/others (like OpenRouter.ai) or host local models for others (hosting require significant resources which will be unusused if you don’t query often). There are means to host locally at home if you can. Some people prefer not to use local hosting even when they can do so.