Bad people?

What do you think?
Is someone who smokes weed honestly a danger to humanity?
Are people who choose to live their lives doing drugs honestly dangerous?
Does it really make them a bad person?
Or are they just living life their own way, and are we just selfish thinking that, unless someone lives life like us, they're bad?
If someone goes against what we believe is wrong, does it honestly mean it's wrong?
Is there a general line for every person that shouldn't be crossed, or does everyone have a unique line?
If everyone does have a unique line, doesn't that mean we should respect that?
What do you think?