We have seen this before, haven't we? They're everywhere, but the most common place to find them is the wide space provided by social media (Facebook, mostly). There are those who are just trolling (although there are palpable levels of this), but there are also those who threaten to cut off heads (we've seen this recently in this country). Unfortunately, there is also the kind that will actually chop your head off. Such an incident happened in France (not just once).
As I have said many times, you cannot get results with extremists, but if you do not do something about it, they will grow on you. It doesn't matter whether they are on the left or on the right, they only cause trouble. And more and more.
How does this affect you? You are obviously a follower of one political view or another. Presumably you are not an extremist. However, if you allow space to the people in question, the other side will identify you with them and they will use you as a scarecrow in their own lackeys' press. But you are not an extremist. But then, try as you might, you will not be able to wash the accusations off.
What can you do?
The sensible thing to do, before things get out of hand, is to contain your own extremists, in league with others who also share your views. The more you wait, the more you hesitate, the harder it will be to do so.
The globalist/nationalist fight is also beginning to rise to a level that could have unforeseeable consequences. This is because some on both sides do not want to hear of compromise on certain issues.
If that were not clear enough, there will be real trouble.