I know google fiber kinda flumped, but if they are already doing their own power generation for data centers they might decide to sell that power to the public too. What is really scary is that I foresee a day where these big tech companies will see it is more profitable to serve utilities to people than web services. Then, after they have a monopoly in most areas, they will enshitify it too.

I don't think that will happen. Being utility is hard and margins are not great unless you get some government money like credit. And even those might go away with change in regime.

There just isn't enough margin or "free money" for someone like Google.