Bisq is great for those of us who are bitcoin maximalists, but to be honest I think they would need a lot of work to make altcoins more easily traded. The most recent release does a great job implanting XMR sub addresses, but more stuff like that is likely to help. I don't like the fact that you have to include shitcoins to attract new customers, but that's the world in which we live.
I don't care about any altcoin except Monero, so correct me if I'm wrong here, but I was under the impression that there are plenty of decentralized swap services out there which will let you swap bitcoin for some other coin directly to and from your wallet without requiring centralized wallets or KYC. The real challenge for DEXs has always been to integrate fiat pairs, since the legacy banking system is so slow and impossible to use with smart contracts or non custodial escrows.
Sparrow simply connects to Samourai wallet's CoinJoin implementation and to Samourai's own coordinator.
Correct. Samourai/Sparrow are obviously better than Wasabi since they aren't pro-censorship an aren't colluding with blockchain analysis, but you must run your own server or else your privacy can be compromised by the centralized server. Which is why I suggest JoinMarket, since it is the closest thing we have to fully decentralized coinjoins at present.
Yet, not only don't they stop using it but also participate in signature campaigns and write positive reviews about these surveillance tools.
It's exactly the same as all the entities I listed above which sell out their principles for profit. The average person is no different. Pump and dump altcoins? Proven scams like YoBit? Surveillance tools like Wasabi? People don't care as long as they get paid.