Bitcoin will be used where its needed, and I believe, like the Heroine dealers in the dark markets who can’t use the legacy banking system, the truckers who have been censored by GoFundMe are welcome to use a decentralized, censorship-resistant, permissionless alternative. This is mainly part of why Satoshi made Bitcoin for in my opinion.
Not exactly heroine drug dealers, I do believe that we cannot just ignore that part of the market but we should be ready for the fact that more transactions occur in cash. I myself have seen college drug sellers using the 10 pound note more than them asking for Bitcoins therefore I do think that we cannot blame them regarding it. Other than that according to stats, only 10% of Bitcoin transactions are used for illegal purposes, can't downgrade the remaining 90% that is used to empower people, empower society and show the government that it might be the time to say bye to the dominance by the riches and the banks.