They're obviously not racists, just misguided.
They attack a group that has worked hard to raise the issue of racism and largely help in removing it from the game. But thats all they do, they raise awareness and promote initiatives, they don't hand out the punishments.
If the likes of Roberts and Ferdinand have a problem, they should take it up with the FA, the ones with the power.
The choc ice tweet is racist. It is basically saying that if you think white you are somehow inferior. What other reading of it could there be?