That “less dangerous” is so subjective and unfounded that I’m not going to address.
On the other hand do you think it’s a good idea to think in extremes? Alcohol is rooted in our culture since literally thousands of years to get it out is almost impossible now but we can struggle for moderation. Weed as we find it on the market didn’t even exist 100 years ago. So maybe it’s a good idea to introduce it get it common as alcohol so in 50 years we will have the problems with alcohol and with weed on top. Smart.
Then we can go further to other drugs because we cant leave them outside. We have to be consistent and some people really like it.