I'll believe BLM is mainstream culture when people of color aren't being disproportionately killed by police.
Until then, if police forces are upholding a mainstream concept of law and order resulting in said disproportionality, BLM is countercultural.
Otherwise, if acknowledging the aims of basically what's a human rights movement via flags and spots on AP tests constitutes inclusion into mainstream culture, then the mainstream culture is absurd and perverse.
This is like saying being "anti-murder" is countercultural because murders still happen.
Just because something occurs does not mean there is no mainstream opposition.
I would go further and say that the most basic elements of the BLM were never countercultural.
opposition to excessive police force has been mainstream since the 70s-80s.
The only part of BLM that is actually controversial and countercultural is the idea of abolishing the police. As a result, the majority of BLM supporters reject this aspect.
Until then, if police forces are upholding a mainstream concept of law and order resulting in said disproportionality, BLM is countercultural.
Otherwise, if acknowledging the aims of basically what's a human rights movement via flags and spots on AP tests constitutes inclusion into mainstream culture, then the mainstream culture is absurd and perverse.