The people on the "homicial ideation" thread I linked to do not seem schizophrenic, either.

Neither do these guys on  the PSTD Forum, "Coping with Homicidal Ideation":

https://www.ptsdforum.org/c/threads/coping-with-homicidal-ideation.28707/

Interesting, to say the least, that there they do not at all find their homicidal ideation pleasurable as in the previously cited thread, but that it has to deal with anger and rage management issues that they feel are making them ill, they want it to go away.

And from what I have read on PSTD, the anger, rage and homicial ideation come before they seek any treatment. (This is not to deny that there is a serious problem right now with the Pentagon trying to drug active soldiers into oblivion where certain actions will no longer bother them. But that is different from the PSTD problem, it's actually mostly an ill-advised, maybe disastrous, attempt to pre-empt it.)

The NYPD example does not convince me at all. That has a "chicken and egg" problem attached. I.E., of course they are going to want to limit access to firearms by anyone taking anti-depressants, because they want to limit the access to firearms by depressed persons. Likewise, they would limit access to driving by anyone in a bar if they could.

I do most certainly agree that there is the pharmaceutical industry has managed to drug a lot of the population unnecessarily, I'm a  strong advocate of that position. All kinds of drugs and other medical interventions like surgery, not just psychoactive ones. I think we are in an epidemic of physician-caused illness. I do not think we are in an epidemic of physician-caused violence, I think the cause of that lie elsewhere. What they cause is misery and suffering for their patients, and a lot more expense for us all, not just wasted money but money spent to get misery and worse health.

I don't see much of a link between that and mass shootings, I'm sorry. You haven't proved it to me; actually quite the opposite, as you're willlingness to attribute it to every situation that comes up even when there is no evidence at all makes me unlikely to trust your analysis of any case.

Ialso think that if psychiatrists knew more than an alchemist about the human mind's workigns, they could help reduce violence in the form of crimes of passion with drug treatment. But they can't, because they don't know shit yet.

If we could make it so you had your way tommorrow, I don't think there would be but a tiny dent in the mass shooting rate. As a matter of fact, I think I could be more easily convinced that if more troubled young men were drugged into passivity, we would see a drop in violence. )(Possibly even a drop in wars.) Not that I think that would be a good thing, because the current pyschiatric drugs that we have are lousy, make most of the people who take them just as miserable.as before they started taking them.

You are confusing the attempt to medicate human sadness and other personality quirks with the problem of violence. I don't see them as the same thing at all, far from it. It's like apples and oranges. The PSTD forum brought up this point clearly:  anger, rage, jealousy and thoughts of revenge are what cause most crimes of passion, which are quite different from mass shootings. Apples and oranges, one size does not fit all. In a lot of those cases, some tranquilizer drugs at the right time might actually have saved lives, they certainly do when it's a wild animal that's attacking.

P.S. Did you ever think that you believe violent crime is getting worse because you pay attention to the news on it now and didn't before? You seem to gloss over or ignore anything like stats showing that it has gone down and that mass shootings are not more common than in recent decades but that they do come in copycat bunches, partly because homicidal ideators, ideating for whatever reason, also follow the news of them.