People say this about just about every popular beer out there. I would bet that there process is much safer, better regulated and more sterile than many people doing it at home. It's fine to not like the taste of a beer but to imply that something wrong is going on without any evidence is just as dishonest as the actions that those companies are being accused of.
Well, studying the subject helps. I was originally going to suggest filling @Rye83 with his wine and then roasting him below a test tube of water but thought that a bit unkind.
You will understand this well - everybody should do what best suits them, unless it hurts others. So brew away until your heart (and belly) feel content!
Here's a novel idea for you: Why not let adults decide for themselves what THEY wish to do? If that makes you vomit then perhaps stop thinking about it (psychological advice).
As has been clear from the reaction to the Corona virus, letting people decide for themselves just does not work and that has been seen in just about every country in the world that got hit with this, even with the enforced rules there were idiots going around as if they have never heard of it. Sometimes regulations are necessary and a bite must be added for the good of everyone, otherwise the infection rate would have gone unchallenged until many many millions have died and the larger percentage of the worlds population caught it and hopefully immunity is real and established.
Meh. The state the world is in now is what happens when you let fear take over. We participate in and deal with far riskier things on a daily basis, likely MUCH more dangerous things once (if) we find out exactly how many people have been infected without any serious symptoms. If we freaked out like this on every thing more dangerous than COVID-19 the world would not resemble anything like it does today. I think it is time we end this nonsense and get the world back on track and stop screwing over the younger generations. This virus is not nearly as scary as many initially thought it to be. F*ck China and f*ck the WHO. Anyone found to have knowingly hidden or misrepresented information for political/diplomatic gains should be gathered up (along with every living generation of their family that didn't loudly and publicly condemn those actions) and hung from the nearest tree, recorded and uploaded to the internet for all to see. What happened to Mussolini and his wife would be far too kind of a punishment for those that have abused their powers during this pandemic.