Why is pot illegal??? What promises go unfullfilled?

Back in my younger years I experimented with a few drugs, my favorite being marijuana. Currently I do not use anything, as I do not want my future to be affected if I get in trouble for a little pot.
One day my friend approached me wanting to go halvsies on this awesome substance he let me test out a few times. He said it was impossible to be found in the human body. No proof vs. however long pot stays in your system.
It was called jwh-18. We called it license plate.
I loved it. We'd sprinkle it over bowls of green, dip our cigarrettes in it...once we poured a crapton on a bowl n I swear I was tripping...the trees spoke colors...we started making out...anyways...quite a while after that, we poured WAAAAY too much of this colorless powder on a bowl while watching Dr. Who. For some reason I put on the Master episodes. I started to freak out in my head...I made him turn it off because the Master had changed from this comical villain into the most horrible evil terrifying person ever...I lay on the bathroom floor waiting for death for hours. Yeah. I'm baddazz. I stared the toilet bowl in the face waiting for death. Didn't cry. Didn't scream. Lay on the bathroom floor on a mat of pubez and dirt waiting to die. I hadn't tried anything more than pot and alcohol at that point of time so I just assumed he was telling me the truth when he didn't say jwh or license plate but said let's pour more of that "white" (now that I think back it was more off a yellowish off white than the white jwh I was used to) stuff on but now I'm starting to wonder if he'd given me an "ecstasy" version of a research chemical that day we made out...I'm starting to wonder if we'd poured a crapton of "LSD" research chemical the day the drums of insanity pounded through my head the entire time I lay on the bathroom floor waiting for death. It was all powder to me.
I had another friend who ran into the ghetto screaming. That side of the ghetto here makes our ghetto make top ten list highest murder rates in the USA. He was probably more scared of what wasn't in the house than what WAS outside.
I will not post about those illegal drugs under the assumption most of you know enough about them vs research chemicals. If you do not, please inform yourselves but not at home. Library. Or internetz. So yeah I guess you could if you have the netz at home. Lolio.
I changed my mind. Here you go. (Not everything on here is illegal.)
Drugzzzzzz
This is stuff I want you to see specifically.
JWH18
omglikesoundssokawaii
This is the first result that popped up when I searched "florida zombie attack"
LOL
This is the third.
Helpful Info

HOLY CARP

OMG WHAT?!

;___;

Here's a bit of comic relief because I'm feeling pretty freaked out right now.
Warning, graphic images, harsh language.

Loved this book

OMFG I've wanted a moat for yearzzzz
Since this is all so scary for me to just type, I need to type something that makes me happy.
You seen Transformers 3? The first 15 minutes was sweeeeeet. Those awesome ROBOTS fighting the baddies in the middle east. I felt so comfy watching them protect the USA from my couch.
Please, go to other forums to ask people's opinions on the debate between illegal drugs vs....designer drugs.
Questions to consider.
Does marijuana make people want to bite faces off?
Do research chemicals make you want to sit at home with a bag of potato chips, pizza, a good movie, or a great video game?
I'm sad...wondering why pot is still illegal...but the ability to make horrible drugs to pass through a loophole isn't...

Pot is still illegal because the amount of work required to legalize, regulate, and tax it isn't worth it to most politicians. It isn't simply a matter of saying it's legal have fun guys.
As for the legality of RCs they're illegal if marketed for human consumption, which is why they're sold as potpourri or bath salts or incense or plant food. Eventually they all get scheduled when they've gotten enough press. But there are tons of potential psychoactive drugs.