[monocasa]

I mean, I don't see why they're moving the barricades into the protesters when they could move them to the side to let the van through, and explain what they're doing rather than just arresting people out of nowhere.

Their actions police here are openly antagonistic, even with the context you've given.

[throwvid19]

You just identified exactly what OP was asking for: context.

I can't hear what the police are saying to the protesters, can you?

That's context.

The police actions appear mildly questionable, I'll give you that. But we lack context to understand what happened here.

The problem here is that both sides are defensive of themselves. This is precisely why understanding context and nuance is important, because each is incentivized to favor their own viewpoint.

[josefx]

Mildly questionable and actively stupid. They have a multi lane road and force the one lane with seated protestors open. I am not sure that there is any context that could explain that choice unless the police is actually prohibited from routing traffic around an obstacle.

[monocasa]

Excuse me for not being clear.

Context which justifies the police's actions.