[girigiri]

50% of crime is committed by a certain sub group of society: if that is a factual statement it is by no means racist. Maybe that sub-group in fact comprises 90% of the society referred to. If that sub-group comprises only 20% or so of the society, there is a problem that needs to be addressed.

A person you have never met must be racist because he has (insert colour of your choice here) skin. All people of that colour are racists.
Is this a racist comment?

Does a large proportion of the Japanese population consider fair skin to be more attractive than dark? Sure - what of it? If you can't tell the difference between aesthetics and racism, that's a problem you are inflicting on others.

I have too often seen people behave in an offensive fashion toward others, and scream "racist, sexist, homophobe et al" when their victims rise to the bait, to be influenced by random accusations of racism. (or sexism, or homophobia, or ....)