Take out the “anonymous” part and it’s pretty much correct. Trustless value transfer is very powerful.
Bitcoin hasn’t been “deanonymized”. It’s never been anonymous. Some of its value actually comes from its extreme transparency.
That said, privacy is important when it comes to money and there are various ways people implement privacy. Both on top of bitcoin and outside of bitcoin.
I don’t know what 51% attack has to do with anonymity though.
You have to trust the other peers aren’t secretly working together to use a 51% attack.