You're slicing that sentence pretty thin.

I said "But once we stop doing things entirely because we are jealous of how some people use it"

That's not jealousy, that's totalitarianism. I'm not going to let you do it at all because I don't like it. The "reason" is jealousy, the action is control.

The electric grid and education are both a sort of commons. Once you start telling people how or if they're allowed to use it, you better have a good goddamned reason for doing so. You can block a data center - and we probably should block some of these data centers - the way people have blocked Walmarts: by demonstrating that the store is entirely extractive and is a drain on local infrastructure and impoverishes communities, and either make them make the community whole or fuck off to be someone else's problem.

If you start moralizing how people can use electricity to block something like this, you're going to quickly rediscover that some people think vibrators are morally wrong, and they'll try to block those too.

I started all of this talking about politics. How you do something matters as much as if or why, once you include everyone instead of just deciding you know best for everyone else.