Wow, so you want to outlaw milk and booze?
That immuned people get some pleasure does in no way make up for the fact that susceptible people DIE.
I guess you do.
It would be more to the point if you simply said "I can't comprehend your argument. Could you explain it in simpler terms?"
The point is, that different people have different physiological responses to different chemicals. We are not all stamped out of the same cookie cutter. What is harmless to some, is deadly to others, and people need to be aware of the fact that drugs kill and wreck some people even though others can seemingly deal with them without problems.