A couple of thoughts based on upthread posts.
All terrorism is violence, but not all violence is terrorism. (Think of the Planned Parenthood radical pro-life ill terrorist, who is genuinely mentally ill, or the Batman movie shooter, who was also genuinely mentally ill.)
And not all terrorism is islamic terrorism. Islamic terrorism is islamic terrorism. And if someone says they are an islamic terrorist, and kills a whole bunch of innocent civilians while claiming allegiance to allah, ISIS, and radical islamic terrorist causes, and is celebrated by terrorists for doing so, then they ARE a radical islamic terrorist by definition.
Not all muslims are terrorists. But ALL radical islamic terrorists are muslims.
Most criminals are clinically antisocial. Most have diagnosable personality "disorders". These are conditions to be managed with social constraints, social training in a mental health setting, and laws. Personality disorders and antisocial behavior cannot be fixed with any amount or type of counseling, meds, or mental health care. All of their "care" when in the "care system" is focused on managing the risk these people present to the rest of the public, and closely monitoring them. We have never, in the history of medicine, "cured" anyone with a personality disorder, or antisocial behavior. Talk therapy is a form of babysitting and monitoring these people to protect the public from their behaviors. Prison and the justice system is another "therapy" to control and monitor their behavior. So saying these people are "mentally ill" does not even marginally explain or justify their behavior, and certainly does not present any missed opportunity for medical mental health intervention. The proper intervention is the criminal justice system, when these individuals with personality disorders and antisocial personalities plan and execute crimes. The proper intervention is not mental health care.
This guy, OM, is clearly, IMO, antisocial, from the earliest age. His family sought no care or monitoring for that, and the school system was unable to manage him or change his behaviors to any substantial degree. At the least, his family (father) was an enabler of OM's antisocial behavior. Added to that is the toxic cultural home environment he was conceived and reared in, and the western antisocial "cultural" influences of his father and mother. Living in a community is not assimilation, even if you have a suit on and a middle class house. This family, like many other immigrants from patriarchal middle eastern regions, is constitutionally unable to assimilate their thinking and values to western ideals, western social norms, and the freedoms of this part of the world. We aren't changing their thinking by "modeling western tolerance". They will never, ever assimilate their thinking toward women, gays, equality, freedom, etc. IMO, every one of these "unable to assimilate their thinking" families on this soil is a serious and ongoing risk to the general safety and security of everyone. That doesn't at all mean that they can't celebrate their heritage, enjoy traditional foods, traditional arts, etc. But the toxicity of the values and morals of African and middle eastern patriarchal islamic cultures is a poison in this country, IMO. We read story after news story about second generation kids of these immigrants who ARE successfully assimilating their thinking, and behaviors-- and then the immigrant father kills his daughters for taking off the hajib, or "acting too western". (Don't ask me to link-- there are literally dozens of these murders in the past few years-- which are treated as crimes, and not a facet of islamic cultural terrorism.)
In generations past, people immigrated here because they wanted to be Americans. They believed in the values, morals, and ideology of freedom in America. They admired America's place in the world, and wanted to be a part of that. Now, that isn't so anymore. Many (most, IMO) immigrants come here for other reasons more suited to money and things. They want to LIVE in America, and take advantage of our material goods, electricity, flushing toilets, job opportunities-- but they have no intention to ever assimilate or become "Americans" in their thinking. They have no loyalty or allegiance to America. They are still thinking and behaving as if they are in their culture of origin, and expecting everyone else to "accommodate" them. They don't particularly "like" America at all, IMO. They don't consider themselves to be Americans, or patriotic, or loyal. Not all immigrants from islamic cultures are this way, but more are like this-- unable to assimilate-- than are not, IMO.
"See something, say something" is a platitude to make us think the government is diligently working to solve the problem, and that they value our input. It's a way to give instructions to the public that are meaningless, but "keep us busy" and placated, like the "duck and cover" training in the 1950s. If there is an IMMEDIATE threat-- a person with a gun shooting people or something, certainly 911 will respond. But with the current political handcuffs on the FBI as to investigating and managing the specific and ongoing (escalating!) risk from islamic terrorism on our soil, nothing will ever be accomplished until we get a different set of political ideologies in the White House, IMO. Many more innocents will die in the mean time. And if someone does try to "say something", it's either ignored, minimized, denied, or the reporting person is demonized with labels. And maybe even prosecuted by the DOJ for "hate". Look how many agencies and people "said something" about OM, and because of enforced "political correctness", no agency was able to put together that he was an increasing risk to society, and take actions to manage that and prevent him from killing people.