ugh this kind of stuff just makes me wish DNS was less centralized, even though it's already incredibly uncentralized.. of course it's just all registrars just being a weak point.. as always
Yes? Basically half of them? Some people put federation in decentralised group, some say only distributed is decentralised.
In short: centralised = 1 owner/operator, federated = many semi-autonomous operators to choose from, decentralised/distributed = everyone's an operator on the same level.
With DNS you still have groups of operators who can tell you what to do and they have the main agencies on top of that. I subscribe to the "it's not really decentralised" view.
The network is decentralized, but each domain still has a single registrar, making the service you (domain owner) receive very centralized. If that one registrar misbehaves or is unresponsive, you're out of luck.
You are consistently objectively wrong on the facts. So your subjective take that dns is decentralized is again wrong.
You can choose different TLDs. Don't like VeriSign's .com? Go with a country tld or make your own tld. Also tld are regulated it isn't even an independent private entity.
Finally switching registrars does NOT require cooperation of the losing registrar, but of the upstream DNS.
The sane take is just don't chose a meme registrar from a bullshit country just because it sounds like something else.