Well most commentators seems to at best just be a lighting rod to get the recent most decadency, And they don't most of the time go through this decadency with autistic details, Which means that what you get is the headlines and emotions (Which is not filling enough, if you ask me)

In regards to their lack of use of alt tech. Tbh I do not think most of these people have technical competency to start hosting their own and as you say they are stuck with the addiction or rational that they need to keep building up their brand, which means that they stay on youtube or perhaps if they want the damnned youth they try to branch out to ticktock...