For one cloudflare is a lot more reputable than most US ISPs. Cloudflare explicitly says "We committed to never writing the querying IP addresses to disk and wiping all logs within 24 hours." https://blog.cloudflare.com/announcing-1111/
If gov tried to force CF to change that they would likely put up a huge public legal fight to prevent it whereas ATT / Verizon and Comcast would bend over backwards to secretly comply while also simultaneously seeing if they could inject some ads into the pages you visited.
If gov tried to force CF to change that they would likely put up a huge public legal fight to prevent it whereas ATT / Verizon and Comcast would bend over backwards to secretly comply while also simultaneously seeing if they could inject some ads into the pages you visited.