Why do Republicans hate American cities?

[haele]

3. Because they (Cities) are hotbeds of innovation and fun.

And cities are diverse. One needs to be polite to people that aren't in "their class" or they find themselves getting poor service, or worse, called out for the petty jerks they are.
Small town America will smile and kowtow to their greatness. Cities will compare them to others with power and point out their shortcomings.