This stereotype comes from the fact that we want the decriminalization of many crimes due mostly to racial injustice. There are laws that only serve to incarcerate people of color, or have at least impacted people of color more. We don't want to free all the prisoners, but if there's someone serving 20 years for having some weed on them, that's just wrong. I don't only say that because I always have weed on me either. I say that because it's not a twenty year crime.
A lot of people will say "if you don't want to do the time, do the crime," but once they or someone they know is a perpetrator it's all, "well, give them another chance." Let's give all the nonviolent offenders a second chance. To an extent. Any of you wall street punks who stole millions, you can rot forever.