When will they destroy themselves? without using violence to forcefully remove them from society, the oldest SJWs from generation zoomer will exist until 2100, not even taking into account generation alpha. If you want to get rid of the marxist menace you start with the children because they are the future, millennials and those older than them scarcely change their beliefs.
2021.
No. Really. As a leftie myself who is self aware enough to try and soul search every one in a while. Wanna know what the left's biggest issue is? When you pressure it, it implodes. For some historical examples:
-South America: as soon as the communist revolutions started failing. What happened? Boom, 5 billion different subcultures of commie hunting each other for the stupidest fucking reasons. And what's even worse giving rise to not just the acceleration of reactionary fascist counterrevolutions but also, ya know, the craziest branches of leftism this side of russia. (Posadism: they literally think causing the nuclear extinction of mankind is good because it will make the dolphins call interstellar communists to rescue the survivors and bring them to soviet paradise. I'm not even kidding here, that really is what their goal was.)
-Russia, pre-ww2: do I even need to explain this one? The civil war wasn't even against the right! The Tzar abandoned post before it even started! The menshevicks were already in power and progressively implementing socialist policies but the bolshevicks decided to call for civil war because they weren't fast enough!
-Russia, post-soviet: Same as South America, really. Between the army couping and uncouping its own leadership, the rise of crazy ass splinter cells like the Nazbols (who btw for those that still don't know are an actual ideology and political party who promised to bring about a new dictatorship that implemented Stalin's economic policies and Hitler's cultural policies if they got to power. I'm not even kidding they are just a fucking treat.)
-Spanish Civil War: The Republicans spent more effort fighting against their supposed allies from CNT-FAI (Ancoms), PCE (Stalin-Hating Communists) and Stalin's Volunteers than they did fighting the actual enemy by the end. Hell, you know how bad it got? After the PCE got control of most of Madrid (the rest being in control of other leftist internal revolutions... no I'm not kidding) the anarchists managed to stage a prison break out (the PCE started putting them in concentration camps by the halfway point in the war due to the rampant terrorism. No I'm not kidding the anarchists started bombing their allies at the smallest slight, while currently in war. One of those slights by the way was when the republicans stopped their "direct democracy tribunals", which for those that don't know... Remember that scene in Dark Knight Rises where the scarecrow is a judge? Yeah it was literally that, just bring in people, frame them flagrantly, then claim the people have spoken and kill them. Whod've guessed the non-anarchists would find that a bit too hard to swallow huh?) and in response the PCE grabbed the fascist prisoners, gave them loaded rifles, and threw them into the camps under the logic "All the cells are open and everyone in there is an anarchist that will kill you if he has the chance, so shoot first." Do please remember this was while Franco's army was literally knocking down their fucking door, and they were arming his soldiers, because compared with the anarchists they were preferrable...
-Spanish Cantonal War: This was during the 1st republic. Government was trying to federalize because they couldn't get the provinces to agree on, well, anything really. And of course they don't agree on that either. From some saying that the federal constitution gave too much power to the federal gov, to some that it gave too little, galicia saying they should take things slower (because of course... if you're not spanish: that's a joke), Murcia just going ahead and declaring the independence of Cartagena on their own terms for no reason, Seville saying that they were taking too long so fuck it we're independent too, declaring the canton of seville, just to have an internal revolution declare the red canton of triana (who got absolutely curbstomped by the canton of seville who then got just as curbstomped by the central gov), by the end of that fucking mess there had been over 50 different leftie denominations fighting each other, which of course just led to a fascist coup that was surprisingly bloodless (mostly because they had already done all the butchering during the prior conflicts...) when the army just went ahead and said "fuck it, fuck you, fuck this, we rule now, you all suck."
Point is. See the pattern? Shit goes well left can cull itself with inner purity bullcrap on its own accord. Left looses control? And suddently the radicals start escalating the purging, fighting each other and by the end you don't even know what side is what, all you know is now there's some idiot who seems to think Hitchhicker's Guide to the Galaxy is a documentary leading a major political party and the army's starting to look for someone to put in charge while they figure out if democracy is worth it after all. EVERY FUCKING TIME.
Yeah if Trump wins this, they're gonna fucking eat each other.