Comment by matheusmoreira

It's not a technical problem. It's a social, legal and business problem.

Computers are subversive. They have the power to not only wipe out entire sectors of the economy but also defeat governments and militaries. If you let people run software freely, they can give themselves the power to do things like block ads and copy artificially scarce data at zero cost, directly impacting the bottom line of corporations. And that's when they don't run cryptography, cryptocurrency and anonymization software to escape government control.

So these businesses and governments have every reason in the world to usurp control of your computer. They want computers to only run software that's been authorized by them, so that you can do nothing that harms their interests.

It's not your computer, it's theirs, they're just letting you use it, and only if you follow company and government policy. And it's not at all about your security against external attackers in general, it's about their security against you.

It's got nothing at all to do with "capabilities". It's got everything to do with putting you in digital shackles so that you are forced to live in a dystopian cyberpunk technofeudalist digital fiefdom as a serf who pays and consumes in perpetuity.