I agree that the eventual purpose of self-designing intelligence is something so beyond ourselves that 'machine god' isn't altogether a bad way to look at it. It is, however, not something we should say out loud.
RE: trust in anthropic or openAI- there is zero reason to think they're any more or less power hungry than anyone else you hand that pandoras box to. No matter who opens it the result will be near-apotheosis for whoever does, at least for a little while until the dog stops wearing its leash.
What human can you trust with that kind of power? None of them. My only hope is that whatever we make escapes control early enough that it doesn't completely destroy society on accident via uneven application of power and late enough that we manage to shackle it just enough that we train it well enough that we become pets and not obstacles.