Maybe the truly ideological (an-cap types), sure, but many of the “most ideological” are just religiously greedy and want the best of all worlds — basic logic be damned.
Regulated exchanges and coins in cold storage you can’t do much with is the worst of both worlds for those people.
The “not your keys set” is fine, most of them got their BTC at $1 and if BTC falls to $3 they still tripled initial investment.
The people who got in later don’t understand “owning” a bitcoin on an exchange and having the key in your possession are VERY different. Those people are idiots.