Re: How many BTC users actually care about privacy?
A very very small minority. Chances are, the majority don't even care about security either. Hence why a lot of people still has their funds on Coinbase/Binance/etc.
The only other way to get BTC will be on the black market. Would that put you off?
Depends what you mean with black market specifically. Peer-to-peer exchanges such as HodlHodl[1], LocalCryptos[2], and Bisq[3] should be totally fine.
[1]
https://hodlhodl.com/[2]
https://localcryptos.com/[3]
https://bisq.network/