Internet = Anonymity + Social awkward people tend to spend a disproportionate time on the internet + attention whoring for daps/rep + youth + people come online with an ax to grind.
It's a recipe for fringe wingnuts and crazies. IRL majority of the militants on here were be considered social outcast in real life but the internet allows them a voice to post their lunatic and false conspiracy theories. (AIDs government manufactured, melanin theory, black israelites, hotep nonsense, etc).
Racism definitely exist but some of these guys take it to 100 and use it as an opportunity to spout fringe crackpot ideas instead of actually going out into black communities and educating people, giving them access to resources and teaching them how to thrive in a global economy like most regular people who are disgusted by racism but actually want to do something tangible about it that would actually effect black people's lives for the better. Most people age 18+ with actual lives, jobs and careers out in the real world don't have time to spend 6-7 hours online at a time everyday like wingnuts do so they are at a huge disadvantage for calling out bulshyt. The only people who have that amount of free time and are normal are teenagers and they aren't educated/experienced enough to call out the nutjobs.
White supremacy and black supremacy are delusions caused by socially awkward outsiders/nutjobs who cling to a falsehoods in order to make excuses for why they suck at life and no one wants to hang out with them in real life. People don't like them because they are lame/no morals/bad attitude/boring/douchebags/dumb/etc, NO, NO, NO, it's because they are white/black. Not everyone online is a nutjob but the crazies scream the loudest and neg the hardest.
I love the internet because you can get access to nearly everything but you can't live you're whole life in a computer or else it will make you go crazy and get into some really weird/retarded shyt and you'll start being a social retard.