u/Consistent_Emu_7434

I became a U.S. citizen this year after living here for about five years. Before moving to Miami, I lived in NYC and my experience was completely different.
In Miami, a lot of immigrants I've met constantly complain about America, even though they've lived here for 10–15 years. Some are citizens, some aren't, some are illegal. During the World Cup, they were cheering for almost every country except the U.S.
I'm genuinely trying to understand the culture here. Is this a Miami thing because so many people have strong ties to their home countries, or have I just ended up with the wrong friend group?
I'm curious because this has been very different from my experience in other parts of the U.S.