Don’t think it’s only a capitalism thing, but I guess capitalism causes so much psychic damage both due to how individualised the burden of existing is and how you constantly have to deal with completely unnecessary nonsense. Also drugs are commodities, so they fit very naturally into “fixing yourself” in capitalism compared to other economic systems, despite all laws. My smoking buddies are usually either political activists or homeless people, and it makes sense as those are two sets of people who engage with the irrationality of the shape of society on a day to day basis.