(This is a philosophical question. Just exploring ideas)
Increasing number of people have nothing to lose. Rioting is pointless and dumb and can land you in jail. People publicly writing "bad stuff" on social media are risking jail-time or at least having their lives destroyed.
Why is nobody killing the rapists and murderers? Why is there no secret organization cleaning up the streets? Why are politicians and "public servants" allowed to feel safe?
I think this is a historical anomaly.
Shia islam does this. Sunni Islam doesn't (with the exception of maybe hamas, but hamas has heavy iranian influence). Sunnis believe in violent expansionism but the lists of the "martyrs" is largely unimportant to them in comparison to the goal, with some exceptions given for very important figures like Saddam Hussein (and even then only sometimes, and iraqi sunnis are influenced by shiism, hes the only martyr-like figure ive observed with sunnis). Sunnis are also much more strictly iconoclastic than shiites and view martyrdom as idolatry, hence it is a necessity that the individual "martyrs" don't really matter to them. An example of the difference is the fact that sunni militant groups usually fizzle out and die if the leader is killed or he's just replaced, while shiite ones become significantly stronger. This is because shiism places importance on martrydom while sunni doesn't. This is an important difference. It's good that shiites are not exactly the problem in the west.
>Christianity does the opposite (Martyrdom through pacifism)
*Kind of*. The catholic church of the medieval ages promoted martyrdom through violence. The most famous example of this is probably St. Jeanne D'Arc or St. Louis IX. You also have St. Ferdinand III or St. Bernard of Clairvaux. There's also more outlandish examples like St. Justo Takayama. That's not to count the regular footsoldiers and such of the crusades proper, the northern crusades, and also the initial expansion of Christianity via the Roman empire. Not everyone achieved sainthood obviously but all of these soldiers were effectively celebrated by the church for engaging in violence on behalf of the church. Especially during the crusades, where they were literal martyrs.
The point is that western European Christianity absolutely had a violent martyrdom culture almost mimicking what exists in shiite Islam. What happened? It's hard to say exactly what. What probably caused the church to cool its rhetoric was because they were aggravating the home-grown protestant movement by pushing for violent action against them, which had the opposite effect on the number of protestants in Europe and later beyond, eventually this turned into a wish to prevent war with powerful newly-protestant nations like England, the baltics/Prussia, and most of Scandinavia.
Again, that's a theory. But the catholic church changed its violent rhetoric long before it's probable that any outside interests had influence whatsoever. By the time protestantism had legitimate pull in Europe, that's curiously around the same time that you stop seeing church excursions being anything but missionary work and when you also see military saints all but disappear.
Moreover, the protestant issue opened up a weird can of worms. To demonstrate martyrdom, the oppressor has to have a legitimate hatred of the faith, which protestants do not qualify for (joan of arc was a weird exception and, at the time, was more of a national martyr for france than a religious one). Hence why the martyr culture most probably died, as almost all wars European powers engaged in from this time on were between each other (with the exception of the occasional random, usually portuguese, skirmish with the ottomans). The arguments for a holy war, martyrdom, and sainthood by combat are significantly less strong against another group of Christians. So the rhetoric simply died out in western Europe. Orthodoxy in the east never really had a "war-cult" for the exact inverse reason, I can get into that more if you want. There is an exception with the conquest of the natives, but again, this applied specifically to the portuguese and spanish and basically nobody else (the french and british didnt give a fuck). Spain and portugal kept martyrdom by violence going on for a bit longer, but not by much. Once they baptized everyone the rhetoric of war with pagans obviously died, and it didn't take them long to do that. Plus, even then, it was still watered down significantly compared to crusader zealotry or reconquista zealotry (specifically from the crown of Castilla, NOT the crown of aragon, an important thing to note)
Furthermore, I consider that Israel must be destroyed