if we want to save the future of mankind then we should be able to control the use of drugs. many humans died because of drugs use.
Many humans died because of science too. Ban science? What about all the inventors and musicians and doctors and philosophers who have used drugs to inspire of expand their mind? The astrophysicist Carl Sagan was a stoner. So were The Beatles and thousands of other musicians. Plenty of doctors and even athletes are starting to use or prescribe medicinal cannabis these days so some drugs can be very beneficial in numerous ways.