But we do have endless studies showing not eating enough fiber increases your chance of having colon cancer, and we also know a lot of people today don't have nearly as much fiber as people did in the past.

mainstream science literally links heavy meat consumption to colon cancer all the time.

There are other sources of protein.

Have you ever looked at those studies? The leading one involves them intentionally giving mice cancer. Completely irrelevant for human biology.

There's a christian cult with a strong bias for vegetarianism that does a lot of medical science publishing. Some of their studies provide useful information, but some of them exist just to create a headline and push a message. Don't be duped.