That is what I wrote, and I fail to see what's wrong with it. I also added my opinion on why cannabis laws are unjust.
That is, if the penalty doesn't fit the crime, the penalty is unjust. If an activity doesn't infringe on others' basic rights (or, perhaps, cause societal harm...), then pursuing that activity isn't socially irresponsible, regardless of its legal status.
I'm all for the rule of law, but when that law punishes people for benign activities, it ought to be changed. If the law infringes on basic human rights, civil disobedience is appropriate.
I think we can both agree that if Christianity were outlawed tomorrow, and people were locked up for possession of the bible, that that particular law would be unjust. I think we can both agree that there are and have been unjust laws and governments. If someone were to choose to own a bible under an anti-Christian regime, I wouldn't consider it socially irresponsible. Would you?