First of all, you asked for proof that BLM is extreme and I gave them to you. 'BLM and Stein is extreme'. This was the argument.
You're confusing ancedotal examples with proof.
Walp is talking about BLM the
movment not the
individuals, you're focused on some of the protesters. If someone punched a Nazi in the name of Martin Luther King, does that mean his message was one of viollence? Particularly as you're also ignoring all the peacefull protest that has come from BLM.
Why don't you look why BLM was created in the first place and what their message is. Is their message to kill white people or to destroy society or something? Are they comparable with ideological movements like Marxist Socialists, Fascists or Nationalsozialism, who actually want to establish their own societies and forms of government? Those are actually extremist movements.
I honestly have no opinion about BLM, but it's simply way to common to take some crazy people and present it like a 'proof' that it's the whole movement. If you're arguing like that, then you will find 'bad' examples everywhere, some Nazis for example are Republicans, but not all Republicans are Nazis. Hell I would even go so far and say that not even all fascists are necessarily 'viollent' - their ideology would lead to viollence if they controlled the government, but that's a different story because most people confuse fascism with nationalsozialism.
One way to look at BLM is to start with what they actually say about themselfs:
The Black Lives Matter Global Network is a chapter-based, member-led organization whose mission is to build local power and to intervene in violence inflicted on Black communities by the state and vigilantes.
We are expansive. We are a collective of liberators who believe in an inclusive and spacious movement. We also believe that in order to win and bring as many people with us along the way, we must move beyond the narrow nationalism that is all too prevalent in Black communities. We must ensure we are building a movement that brings all of us to the front.
We affirm the lives of Black queer and trans folks, disabled folks, undocumented folks, folks with records, women, and all Black lives along the gender spectrum. Our network centers those who have been marginalized within Black liberation movements.
We are working for a world where Black lives are no longer systematically targeted for demise.
We affirm our humanity, our contributions to this society, and our resilience in the face of deadly oppression.
The call for Black lives to matter is a rallying cry for ALL Black lives striving for liberation.
https://blacklivesmatter.com/about/
Then you can look at Wikipedia:
Guiding principles
According to the Black Lives Matter website, there are thirteen guiding principles that should apply to those who choose to become involved under the Black Lives Matter banner, among them
Diversity,
Globalism,
Empathy,
Restorative Justice and
Intergenerationality.
[38]
Broader movement
Concurrently, a broader movement involving several other organizations and activists emerged under the banner of "Black Lives Matter" as well.
[5][39] For example, BLM is a member organization of the
Movement for Black Lives established to respond to sustained and increasingly visible violence against black communities in the U.S. and globally.
[40] In 2015
Johnetta Elzie,
DeRay Mckesson,
Brittany Packnett, and
Samuel Sinyangwe, initiated
Campaign Zero, aimed at promoting policy reforms to end police brutality. The campaign released a ten-point plan for reforms to policing, with recommendations including: ending
broken windows policing, increasing community oversight of police departments, and creating stricter guidelines for the use of force.
[41] New York Times reporter John Eligon reported that some activists had expressed concerns that the campaign was overly focused on legislative remedies for police violence.
[42]
https://en.wikipedia.org/wiki/Black_Lives_Matter
Now, one can agree or disagree with their principles, but I can not read anywhere that their ideology and ideas are based on viollence or extremism or that this would be actually proposed by the majority of their followers.
Just to make this clear, the same issue also exists on the other side, where some people look at Trump rallies, see a handfull of viiollent people or extreme right wingers and call all Trump followers neo-nazis. Both BLM and Trumps base, are extremly diverse movements with a lot of individuals 'claiming' to be a part of it, but they actually aren't and yet way to often people concentrate just on those individuals.
This is what I meant when I said, that you find a lot of identity politics on both sides of the political spectrum today, and to many people follow that argumentation, without even knowing where it's coming from.