Are there any areas of Miami that aren't full of rude self-centered people?

I know that generally, the culture here is generally like this, but unfortunately, I'm stuck here. We can move as far south as Palmetto Bay and as north as Cooper City. Are there any areas that have at least a slightly friendlier culture than the majority of Miami? I'm not asking for much, but at least an area where you can go to Publix and they actually smile at you in the checkout line instead of glaring at you and not saying a word...

We don't speak Spanish unfortunately, so we also feel a little isolated in some areas due to that.