Where is the evidence that eating red meat causes colon cancer?
Your risks are higher with high meat consumption
With meat and a high fiber diet your risks are more moderate
I always manage to eat extra fiber after consuming meat
Otherwise bowl passage is delayed
I'm no vegan and I use skim dairy, I don't run around preaching this or that. But I find it strange that the people in those vids you posted are laughing a lot. Are you sure that's not some kind of nervous 'whistle-in-the-dark' defensive mechanism?
Re cattle, I saw a spot cartoon of God, during creation, sitting on a cloud looking over a herd of cattle saying 'now I have to create somebody to eat you guys'
Red Meat and Colon Cancer
https://www.health.harvard.edu/staying-healthy/red-meat-and-colon-cancer