

Drugs are bad. Don’t use anything addictive or too mind-altering. I think even regular (daily) consumption of coffee is bad but it’s one of those things that under capitalism I suppose I understand as a kind of necessary evil.
Mind-control MKUltra drugs which encourage frivolous hedonism, individualism, magical/irrational thinking are of course a weapon of the enemy and often directly fund them and their proxies as well. Escapism would not be a needed thing under socialism as well, they are at most a crutch and I am very suspicious of those who advocate their use. This person you speak of is not a Marxist and may well be a fed.
Happy birthday!