True, but that ain't the issue here is it?
Those who are taking part in that action will be fully aware of it.
But the numbskulls who undertake the racial attacks and more importantly the silent bystanders may well wake up to the fact that the behaviour of these numbskulls is having a detrimental effect on the bystanders' social media experience and so the awareness is increased and getting to a better place is a small step closer.
Sadly, these changes takes years to get common conscience to move and get to a better place.