It seems you have anger towards a group of people you have defined as bad. That seems to be clouding your judgement. For example, you somehow have convinced yourself that the use of metal water bottles is bad if used by synthetic fabric hoodie wearers in SF.
A fair number of synthetic undergarments. I live in Vietnam, so breathable, wicking clothes are important. I have tried rayon, but I am not impressed. I tried wool boxer briefs, but they were comically small. After reading your post, I did order another two pair of wool shorts. We’ll see how they do.
First, everyone wears synthetics, not just in SF.
Second, less plastic is less plastic.