Your posting history indicates you typically think rationally, so I'll give you the cliff notes reason why: it's just business.
When you're placed in a position of management - either directly or virtually as an informed conservative involved in politics - you need to deal with facts on the ground.
One primary fact is that it's necessary to have an IQ of at least 95 to be able to function as a productive citizen in some form or capacity. Those below that threshold simply do not have the cognitive ability to either govern themselves or deal with any level of (economic ie self support) complexity.
So, what do they do? They turn to the classic vices: alcohol, drugs, promiscuous sex, gambling, etc. Dysfunctional behavior begins early - typically by age 13. Are there entities that prey on these kinds of people? Yes, that goes without saying. Are there organizations that promise to reform, redeem and/or train these people - to no avail of course. Again, yes.
Society is then faced with two choices: prohibition or maintenance. Note that there isn't a solution - it simply exists. In other words, money will be spent either on a criminal justice system in a futile attempt to prevent usage, or it will be spent on a blend of CJS and social programs to ameliorate the after effects.
Now place yourself in a management position: what choice(s) do you make given these fundamentals? Would it surprise you that it would look just like we have today, a blend of each? This is the role & responsibility of those who deal with facts, not wishes or dogmatic positions.
Really? I thought 100 was average, and 5 point below average makes you worthless? I remember reading that below 80IQ people didn't function too well, and below 60 they really are not able to do anything
Dysfunctional behavior begins early - typically by age 13.
Too true a former boss's kid went down that route and he started at age 12. The kid was not dumb in the low IQ sense, but by 13 he was stealing from relatives and friends to buy drugs, and by late teens he was jailed several times for theft. He openly bragged to his father who spent big time in the rehab swindles that he was able to get drugs and use them in the expensive rehab centers to which he was sent. I lost touch with the dad 14 years ago. I suspect the kid is either dead or in jail for something serious by now.
You are very wise, some problems don’t have a solution, they have to be managed.