Please correct me if I am wrong but one node / One vote is not true today and since a long time.
It has never been true, either. It has always been 'one hash, one vote', in a way. The number of votes solely relies on how many hashes you can churn out.
People are not solo-mining BTC anymore through Bitcoin Core
I don't know what we should say now, one ASIC one vote ? One Eh/s one vote ?
Got nothing to do with the software, but yes, Bitcoin Core removed mining functionality.
One H/s = one vote, makes most sense, I guess. Exa-, Peta-, Tera-, those are just
metric prefixes. Don't change what unit you're working with.