I had never perceived people using centralized exchanges or even complying with KYC or even using custodial wallet as anti-Bitcoin. Sure, they might not be the one in full control of their assets or whatever coins they are holding, but I am pretty sure they are using it over fiat for a reason obviously.
It is your responsibility in the end on what will happen to your assets anyway, let alone that you invested your money to whatever coin is out there in CMC that you first saw. The only thing you should not do after that is blame other people for whatever stupidity you ended up with due to your obvious negligence.