No, because these are not considered a "Race".
A dislike for a pattern of behavior is just what it is.
Is hating prostitutes and criminals a form of racism?
No they aren't a race!
Here is the definition of racism, as you believe that being a prostitute or a criminal is a race:
1. A belief or doctrine that inherent differences among the various human racial groups determine cultural or individual achievement, usually involving the idea that one's own race is superior and has the right to dominate others or that a particular racial group is inferior to the others.
2. A policy, system of government, etc., based upon or fostering such a doctrine; discrimination.
3. Hatred or intolerance of another race or other races.
You can hate what a person does (prostitute themselves or stealing or robbing someone) without hating the person. It doesn't make you a racist.