IMO they need to go. Shooters not only find illegal gun resources and mods via the internet, but most of them are spurred by hate rhetoric found online. Or have video's of them with hate speech. White and muslim terrorists alike. Authorities give too many people the benefit of the doubt. The feds have to get tougher about cutting out the middle man. Distribution channels - dark corners of the internet. The toughest gun laws won't alter anything with 400 million in circulation and mods being purchased for handguns which anyone can LEGALLY buy after tough laws are passed.
I see why you feel that initially, but food for thought: If you censor someone, they will become more extreme. The solution is to open up speech to allow assholes to vent their frustrations where they might be countered by normal people, not make them more extreme by putting them in dark corner echo chambers. And yes that includes what someone may consider hate speech. Hate speech is free speech and that is the cost of freedom.
Corners for idiots to become empowered, you mean? Put more money into cyber security and censorship, be more ruthless with all forms of gun and weapon sales, and you will only see positive results. Isolating idiots worked fine before the internet era, relatively, now they are joining forces and consolidating wrong., violent ideologies whether it is racial supremacy, religious fanaticism etc. It all leads to roads inciting violence, which is against the law.