Thankfully there are still enough channels which are not that optimized.
But I wonder: How would the scene of Youtubers cope, if Youtube suddenly changes its algorithm to something completely different? I remember the tears in SEO-land, when Google did it.
It's almost like the situation of buggy hardware implementations of networking protocols being so prevalent that software has to adapt to it, and vice versa, leading to lots of silly non-compliant (or non-optimal) behavior because it's disadvantageous to fix your behavior before upstream/downstream fixes theirs.
I think the better ways to fix this would be either gradual change, carefully-crafted regulation, or a new platform entirely that's not owned by an ad company.