They could but it just feels wrong to take down stuff because of mob chasing after them. Soon, we will be silencing political opponents, critics, contrarians, etc. the entire fabric of society falls apart when mobs fight like this. There needs to be stern principles of free speech, in colloquial and philosophical sense [1], that keeps the wheels greased and keeps the fabric intact. Honestly, we are heading towards a society akin to CCP in China except instead of Governments censoring directly, we have a proxy of Big Tech/Corp doing it for them.

Besides, Joe Rogan, there are far too many crackpot books on Amazon. We shouldn't take them down.

[1] I am well aware of the legal definition of Free Speech. But most people in our society argue with the philosophical position.