I think he's largely just pointing out that we're purchasing drugs through people that are happy to take advantage of the system to sell them to us - every single vendor knows we're injecting this shit and not using it for research purposes. You can maybe make the case that this is moral and ethical for things that are through clinical trials, but a lot of what's for sale by every single vendor is potentially wildly dangerous for human use - we don't know for sure because we don't have clinical studies. Hell, you can buy DNP from QSC - that's an easy one to get wrong and kill yourself just as fast as a drug overdose.
Basically none of us are doing in depth research on who all these companies are, who owns them, what other subsidiaries are owned by the same people, etc. We have no idea how many companies are making opioid precursors and analogs - certainly many more than in the indictment. If you want to avoid SRY because there is a known link, go for it, but frankly, I wouldn't be the slightest bit surprised if every vendor on here is connected in some way to companies that have helped facilitate the continued opioid pandemic. I'd bet money that more are involved than just SRY.
Drug dealers deal drugs. This is axiomatically true. I've not purchased from SRY, I have no plan to purchase from SRY, but I don't think any of us are in a position to moralize about the drug trade when we are all almost certainly contributing to it in some fashion.