That's actually a really good idea. Someone should sell a pi hole like box preconfigured to block all those aggressive/conspiratorial sites. Maybe make it discrete too, like a small box you plug into an outlet hidden behind some furniture.

I wonder how many realize that censoring information is a human habit as old as time?

Another option to blocking is throttling speed. Make time-wasting (or worse) laborious to access and make the woodworking videos on YouTube full speed.

I have a deepseated aversion to outright censorship when it comes to my kids' media but this is somehow more palatable to me. What a pleasantly dystopian compromise!