The good safety of nuclear in developed countries goes hand in hand with its costly regulatory environment, the risk for catastrophic breakdown of nuclear facilities is managed not by technically proficient design but by oversight and rules, which are expensive yes , but they also need to be because the people running the plant are it’s weakest link in terms of safety.
Now we are entering potentially decades of conflict and natural disaster and the proposition is to build energy infrastructure that is very centralized, relies on fuel that must be acquired, and is in the hands of a relatively small amount of people, especially if their societal controll/ oversight structure breaks down. It just doesn’t seem particularly reasonable to me, especially considering lead times on these things, but nice meme I guess.
I think scale matters because almost no person is as much of an island as your example fishing video guy. I actually have noticed almost the opposite in most people I know, YouTube is the default place to get entertainment. Across all their interests.
From both sides the network effect might be strongest with YouTube, the creators can’t leave because YouTube has virtually all of the audience, and consumers don’t want to watch singular people on other platforms because on YouTube you can stumble over interesting videos and all the people you like to watch are already there.
The only way I see for other platforms to actually grow is forced interoperability, as in videos of other platforms appearing in the YouTube frontend. Which Google would never do so the government would need to force them.