People like those I mentioned, have forfeited their humanity. Therefore they are no better than vermin. And should be shot as such.
Or simply imprisoned, in the 75% of countries that dont have the death penalty anymore ('merica f*ck yeah).
Also - my point being that your average US Army drone pilot, or catholic church bishop simply carouselling sex offenders around to other municipalities and hiding them from the law are morally really not any better off than the murderers and molesters, that are paraded for your enjoyment on late night television programs.
Then I explained, that being engulfed by common moral outrage narratives ("It could happen to you!") really serves the purpose of "getting you off" (catharsis) on moral superiority grounds. Probably while liking your gorefest horror flix, just as much as the next guy, but not acting on those notions.
The guy killing those two girls, that "moral monster", likely was a mental case, that now gets paraded around by TV producers for your enjoyment. And the next school shooter - somehow will be seen as less morally appalling, because even though no one mentions it (for good reasons, because you have to make monsters out of those cases), every one can imagine a history of abuse - that came beforehand.
And then you all look up and put a hand over your heart, when the national anthem plays, and one of your presidents holds a war speech. ("Dear fellow americans, ...") Or your financial industry ruined the worlds economy again. Or some embargo of yours also affects refugee camps.
Or sheer neglect made sure, that more people died from the clean up work of 9/11 (cancer mostly) than from the terrorist attacks on that day.
So the guys killing two people because they are mentally deranged, those are your TV presentable monsters, and the rest, mostly is fate - or something youd rather not think about.
And to be honest thats not even a moral beatdown, thats just how humans work. They are afraid of what they can imagine. They are fascinated by every gory detail. Nothing sells papers as well as a bad news story. Their movie blockbusters are sponsored by army and navy. And they have learned to differentiate between morally good killings, and bad ones (the bad ones are gory, the good ones are clean - except when the world refuses to sell you your tested death penalty drugs any longer, then things become murky... (oh the humanity, on that one...)). Then they watch baseball on the weekends.
- Also, please dont take youtube videos with the words "Proof that..." seriously. As you might have noticed, there is no quality control on youtube or social media. Every persons output is just as "interesting" to the algorithm (sorting by popularity) as the next ones, as long as it draws views. As a society you had years of fun with selling people on the Bigfoot myth.
Thats nothing new either.
- Also, sorry for the 'merica bashing, but I actually live in a country that doesnt start wars, or kills other humans for revenge, so its just easier to give those examples - with american (news) stories. Everyone knows them and people can relate.
edit: This (the grotesque evil stuff is mainly out there for catharsis purposes, and because people are interested in those stories, while other "bad" stuff is seen as strangely normal in our societies) touches on a concept called "The banality of evil". Hannah Arendt (public intellectual) famously disected in the 1960s - if you want to read up on it:
https://aeon.co/ideas/what-did-hannah-arendt-really-mean-by-the-banality-of-evil
Once you come to the conclusion, that the potential for "evil" is actually all around you, as is the potential for good - the notion of "some people being categorically so - without the propensity to change, or the impact of the situation (as in predetermined)" becomes actually quite scary. As in - it could even be someone you know.
And we are better off to drive those "monster" narratives, so people have definite social guidelines. And go for integration efforts on everyone else.
But the difficult questions of there being such a thing as good and bad, doesnt take place at the "those are the social outcast monsters for your late night enjoyment" level. They usually take place in your every day life. Which is why "I know - those are the bad people!" is such a cop out.
Which is also, why everyone in here avoided to touch on any political, societal or economic problems - because those are hot issues. (Its not decided yet.)
Which is also why law, and public opinion, are distinctly different things on purpose. And also why we as western societies have stoped using good and bad as guidelines for any public action. Its just that not everyone has caught up yet.
(Moral outrage can drive social movements, which can drive political action, but thats a process, that has you specifically not setting up witchhunts on day two of the thing catching traction. Its almost like, people thought about that... Or did that in the past.)