alt Hacker NewsI suggest reading about the different effects of smoking typical amounts of tobacco vs cannabis, and comparing the magnitude of the damage, both at the individual and societal level.
I really dislike the smell of cannabis and can count with the fingers of one hand how often I vape it per year, so I am not exactly an advocate, but comparing it with tobacco is silly.
I'm doubtful of any motivated reasoning/research that one type of smoke in your lungs is dramatically better than another type of smoke in your lungs... compared with.. no smoke in your lungs.
Have an edible, do whatever you want in your own home, enjoy. But don't rationalize the laissez faire attitude towards one type of secondhand smoke over another.