Your obscure channel is being carried by one of the large conglomerates (AT&T, etc.) that's licensed it to broadcast worldwide. They'd like for everyone to think Black Lives MatterTM has worldwide support but it's a hoax controlled from a small corporate boardroom.
It was a black player on the field who staged the protest after scoring a goal.
This is in Turkey. If it’s being promoted by anyone it has to be FIFA, the world governing body of soccer.