I dont think its possible to spot when a regime is gonna turn extreme, psychopaths run both right and leftAgree TET,but i don't see a surge in left wing extremism, apart from Putin the puppet master using right wing extremism,to achieve the divide and conquer there fore re-establishing the greater Russian empire, but hey,maybe that's jist me!
And they will convince you of their vision which is never extreme at first.
False flags are created
Some real flags can turn people extreme at drop of hat.
If a nutter from any extreme group does something extreme it usually creates a power grab by the psychos using popular passion at that particular calumity
Some are constructed to create support for the extremists
And by heck it works
Control the news and you control the general passions