There are all sorts of things that I personally disagree with that I'll fight for your right to do.
If you want to have ten sexual partners at once, do a ton of drugs, generally live a hedonistic lifestyle, you do you. I'll judge you and won't associate with you, but I'm not going to stand in your way.
The hard cases are when one person’s freedom conflicts with another’s. Like my right to own firearms vs your right to be safe, or my freedom to run my polluting business vs your freedom to have a clean environment, or my freedom to ignore lockdowns in early 2020 vs your freedom to get care at a hospital with capacity.
The ability I have to leave my house and walk around is of a different quality to the ability I have to go to the supermarket and buy some food. Positive vs negative rights, something like that. I'm feeling lazy in my explanation but probably you know it already. :)
With drug abuse I feel it's quite simple. If you want to do meth in your home, I think you're a bit daft but I'm mostly happy for you.
If you end up in a tent city under a bridge abusing passers by and committing crimes to get your next hit, well, we should punish that hard.
