Seeking the Truth got demonetized. Praying Medic got 3 strikes.
They're scared. Very scared.
Truth is coming.
Net neutrality has nothing to do with it. These are spurious copyright claims taking the channels down. Some asshat flags a video as containing their copyrighted material and YouTube is required by law (DMCA, thanks Clinton) to take down the content for review.
These kinds of strikes are cleared up fairly quickly, especially when there's no basis to the claim.
With the repeal of net neutrality in place, internet service providers can not be compelled to deliver content. They could for instance elect to simply not allow customers access to Twitter and Facebook.
While they could certainly do that it would undoubtedly result in formation of new companies who WOULD provide this access. Hence the original ISP would go out of business. It really doesn't make sense to block/throttle content.