With the national regulatory policy, privacy currency will be paid more and more attention.
Actually yes, I agree with you. Now people don't care about privacy very much, but maybe if crypto becomes more regulated, people will want to use private coins more actively. On the other hand, I am sure that authorities are not in favour of such coins, so they can just ban those exchanges that will offer them, so that people even can't use them.
It is not like the people don't care about privacy anymore. They have become more knowledgeable about how to use Bitcoin anonymously. Unless there is a link to fiat conversion, it is almost impossible to trace the Bitcoin transactions back to you. Most of the users have realized this and those who need anonymity are being careful on this regard. But the downside is that now the users don't really need coins that are specifically designed for anonymous payments, such as Monero, Deep Onion, Veil and Verge.
This is a good point, now that mixers exist for larger cap projects like Bitcoin and Ethereum, there is less of a need for a fully private crypto that only does one thing, privacy. Mixercasino is a good option because it combines a casino with a free mixer. 0xMR is also a good way to play this strategy because it is used to pay for mixing of stablecoins and Ethereum. The only 100% privacy crypto I am buying now is a little Dero but that's because I hear Dollar Vigilante is going to pump it in his next video.