Is political violence spreading around the world?

Here are some recent examples of political violence in Europe and America.
In early July, Hamburg, Germany hosted the G20 meeting and associated demonstrations.
Within those demonstrations, the streets of this German city were filled with some 1,000 persons marching with black and red flags, they were dressed from foot to head in black, looking like ISIS or some new age fascist blackshirts they smashed the windows of every car parked in the street and then dropped flares into the cars leaving a trail of destroyed vehicles and plumes of toxic smoke floating up to the sky.
They also made death threats to two international independent journalists who realised that the thugs were tracking them and Tweeting their locations. The journalists left the country and arrived in London, where by chance they attended a meeting that I attended of social activists.
In America, their much less violent version of Antifa attacked at Berkeley university because the British journalist, flamboyant, self-publicist and wit Milo Yiannopoulos was going to entertain an audience. They attacked both the building and the awaiting audience so as to prevent Milo inciting violence. They beat a man even when unconscious, and they sprayed irritant chemicals into the eyes of a women being interviewed — all in the name of preventing violence.
In response to this various persons held a free speech rally a week later in a nearby public park and were attacked by Antifa, but this time Antifa were scattered and routed, but not before one of their number had thrown a bike lock (a solid piece of metal) at very close distance at the head of a man who was kneeling with his arms outstretched in an appeal for calm or conversation. Blood streamed from his head as the masked assailant disappeared into the crowd; a crowd which dresses identically, to give cover to these kinds of attacks.
(The assailant was tracked down by anonymous persons who compared video footage and facial features and the great irony is that the accused is a college teacher who teaches ethics.)
A more recent protest is different in which several groups including a group of what are called ‘alt-right’ or ‘white nationalists’ or ‘white identitarians’ decided to hold a rally in a Southern town, which was going to remove an historical monument. Ostensibly they were going to protest its removal, and they claimed their eponymous rally was to ‘unite the right’.
The night before the rally some few hundred of them marched in a night time procession carrying flaming torches in which they chanted ‘Blood and soil’ which is a direct translation from a German chant popular in the 1920s or 1930s. They also chanted ‘white lives matter’ and either “You will not replace us” or maybe “Jews will not replace us”.
The next day, it seems that the authorities, who never wanted the legal rally to take place, allowed protesters to attack the group thereby giving the authorities reason to cancel their permission. Having announced that the assembly was unlawful, riot police pushed the group out of the park and into the waiting violent protesters.
(There are conflicting reports over the details of the violence and I have little doubt that many on both sides wanted a fight, but it does seem that the main violence was due to the group being channelled into the opposing groups by the riot police.)
After most of the group had driven away from the town (under threat of arrest if they remained), one lone young man drove his car into a crowd seriously wounding many and killing one.
There were various groups protesting the removal of the statues, but the newest and most interesting are the ‘white identitarians’ also known as ‘alt-right’.
They are rebelling against the postmodernist-Marxist taunts that are commonplace in American education, media and the wider population which blame white men for all the ills of modern life and also place on them a responsibility for slavery, because they have the same skin colour as the main slave owners from 150 years ago.
They feel under attack and their reaction is to group together with a motto of white pride and pride in western civilization, which they believe was a uniquely white accomplishment for which they can personally feel pride.
They experience prejudice against them from postmodernist-Marxist ideology, which is real, but they take it further by pointing out that the philosophers who created postmodernism, and Karl Marx himself are mainly of Jewish heritage. They therefore believe that all this persecution and the general beliefs of postmodernist-Marxism ( PC , transgenderism, cultural Marxism, multiculturalism, etc) are part of a huge Jewish plot to replace the white race with dark skinned people.
The alt-right see Jews as the cause of all their problems so, deny it as they do, they aren’t far short of being actual Nazis.
Are other countries likely to suffer these kinds of violent rifts?
At the meeting of social activists mentioned above many of the young men there spoke of the same kind of pressures on them, the criticism for being male and for being white and the difficulty of talking about current social and political topics for anyone who doesn’t follow the postmodernist-Marxist narrative.
This political violence in Europe and America, is it going to break out in Britain?
What is your opinion on this? Please comment below.
