So - if a player falsely accuses another player of "racism" what does that say about the first player?
the player in question has been brainwashed by a segment of the population that thinks anything even vaguely critical said about anyone who isn't part of the privileged class is "racist". that's clearly false, but it doesn't matter because the accusation is all that counts.
... and that's why the FA is now digging up Holgate's old tweets in order to find a way of sanctioning him.