It is difficult to compare issurim to determine which is worse. I think enough commenters here recognize the issurim on excessive alcohol, tobacco, and weed.
If you’ll notice, the potheads here are arguing that weed is okay because alcohol and tobacco are bad.
You can argue that they’re bad, but when you make them all somehow pretty much equivalent, you support the potheads. Since smoking and drinking are considered socially acceptable, you can argue all you want that they shouldn’t be, and I’ll agree with you 99%, but let’s not conflate them; let’s acknowledge that marijuana is much worse.