I think blocking content and net neutrality are mostly totally different issues. (Although content blocking I guess is one subset of NN).

It's interesting because, due to free speech laws in the US, ISPs can't really block anything. But they are required to monitor and report people who transfer illegal content:

https://www.theguardian.com/technology/2017/jan/11/microsoft...

That being said, big tech does have the power to squish people they don't like, as I wrote about a while back:

https://fightthefuture.org/article/the-new-era-of-corporate-...