Unlike most of our mass murders, this is clearly a “mental case”.
But again I will say conservatives need to stop countering the “guns!” Argument with “mental illness” reasoning.
As with most ills, this is a systemic cultural problem. Most of these killers aren’t likely “mental” but morally depraved and spoiled. Such narcissism has become the way we raise and handle people, especially if the protected classes. (And libs should know that their celebration of groups while denigrating 1 group will likely lead to resentment and retaliation, eventually.)
You have a valid point. Catering to mental illnesses (or at least 'conditions which were formerly officially recognized as such) is a large part of the problem When their condition meets with resistance to being 'celebrated' (i.e. getting special treatment because of that condition), then the problem all too often becomes violent.
Feeding that by making the patient into a 'victim',definitely feeds the mindset, and the entire apocalyptic approach of late, of "It's us or them", "You're part of the solution or part of the problem",
They are out to commit genocide against
US", system of false dichotomous thinking that of late passes for logic and is heavily entrenched in the rhetoric of today's politics could readily lead to violent incidents.
Everything is seen as some battle, with failure to prevail leading to an apocalyptic outcome, which, incidentally, is one of the prime characteristics of doomsday cult mentality.
It is time to tone down the rhetoric if we are to remain civilized, especially in Media, but that is something that I do not see as forthcoming. Instead, the divisions are emphasized, along racial, religious, cultural, down to even sexual preference barriers, and all are pitted against the other, with the assurance that anyone not in complete agreement is an existential enemy who is out to 'get them'. Under those circumstances, regardless of means or methodology, violence is practically assured. Firearms are just one tool, mobs are another, and all the various means of inflicting life threatening or lethal trauma are somehow justified by hurt feelings.
This has been developing for decades, and it's going to take a generation or two to back it down, short of decisive action against perpetrators that will make those particular crimes an unviable option.