Culturally, the USA might as well be about 6 different countries, different regions can be extremely different in the US.
SoCal, the desert southwest, the south, the north east, pacific northwest, midwest, Alaska, each one is totally different. You cannot really generalize American people too much because they are so diverse.
Florida does have a redneck/southern trash thing going on. But many parts of the USA don't have that much at all. All up and down the West Coast you won't find much of that vibe at all.
The diversity makes this country great.