American cities where gay PDA is acceptable?

Certainly in most American cities that I've lived in and visited - even the so-called liberal ones - the sight of a gay couple holding hands or (heaven forbid) kissing in public will attract unwanted negative attention, and in certain conservative hellholes may lead to physical confrontation. So is there a single American city where nobody gives a damn if a gay couple shows the same level of affection in public as any normal straight couple (i.e., holding hands?)