I do take your point, but this issue is not unique to centralized exchanges. There are payment processors like BitPay which demand KYC and discriminate against tainted coins, and yet people still use it. We now have so called "privacy wallets" like Wasabi which are discriminating against tainted coins, and even then, people are still using it. Not only do these services not present the opportunity to become rich (regardless of how misplaced such a feeling is), but they are also used predominantly by people using bitcoin as a currency rather than an investment. And yet, these users are still happy to abandon their privacy and further the idea of taint by supporting these entities.

Stop living by "their" rules. As I said, I have literally never had a problem with tainted coins because I will not use any service which enforces arbitrary rules on me. The whole point of bitcoin is to stop third parties having control over your money, and that includes allowing them to dictate to you whether or not your coins are good enough for them.