Why do liberals constantly call every crime committed against blacks a hate crime?
I don't think you should so casually and generally condemn all Liberals because there are many Liberals who are not predisposed to the attitude you've suggested. To take that a step further, there are many individuals who embrace some Liberal and some Conservative attitudes.
The type of individual you are referring to is a type of deceitful, hypocritical, White who pretends to have racially liberal views but who would rather die than live in an integrated neighborhood.