That looks like one of those videos people who don't understand the topic make only to get views.

What is being explained doesn't sound new either and it is not exactly "alternative" internet either. It sounds more like "Domestic Internet". A couple of developed countries have had that for a very long time. For example in Iran we built it decades ago and everything domestic runs on that which makes it cheaper as well.

It is basically a national security matter specially in this day and age that everything is depending more and more on the internet. Any country has to be able to have full control over its own internal traffic (eg. the banking system) to remain safe.