I keep hearing about
antifa. It seems to be a leaderless decentralized group of anti-fascist and anti-racist people who use a weird looking flag.
Considering that this flag never shows up but people point to antifa always showing up and that without the flag, it's just a group of anti-fascist and anti-raicist people.
So, if you are anti-antifa, what does removing the double negative make you?
Speaking only for Germany, where Antifa has a lomg history:
The roots of antifascism go back as far as fascism itself, i.e. to the late 1920s and early 1930s. When Hitler and his brownshirts showed up, there was a counter-movement. There also was a new antifascist wave that started in the late 60s/early 70s to counteract the neonazi movement (specifically the newly founded NPD).
In the 1990s, after German reunification, there was a great upsearch of neonazism in the East (not that nazism had ever completely disasppeared either in the East or the West at any point). In many parts of the country it became a common pasttime of both rural and urban youth (especially in poorer areas with high unemployment) to go out in groups armed with baseball bats and look for migrants, gays or leftists to beat up. Many people that grew up in the East during these socalled "baseball bat years" could tell you stories of how you could hardly leave the house in safety. Think the American South in the 1920s and 30s. There were also several cases of refugee homes being set on fire (with people still inside) and crowds cheering the arsenists on.
As a reaction to that and often as the only popcultural alternative for young people antifascist groups started to form. Both the neonazis and the antifa developed certain paraphernalia/symbols, etc to be recognizable.
To me, as a German, the American debate about Antifa sounds weird because what I associate with the name is basically people who try to stop skinheads from smashing in the skulls of migrants.
There is an ongoing debate within Antifa about the use of force but according to police statistics, leftwing extremist crime tends to be about violence against objects (i.e. smearing grafitti and maybe the occasional car set on fire or window smashed in during demonstrations turned riots) while rightwing extremist crime tends to be about violence against people (i.e. battery, homocide and death and rape threats against opponents).