After reading these posts, I'm very sure it's racism, thank you all for confirming for me.

I already posted about that I do know that service is Europe is substandard compared to the US. I pointed out that the waiter was outright rude to us, did not greet us but when other guests enter the lounge, it was a big hello, in English and Spanish. I'm from Southern California, I know enough Spanish to get by. I observed his interactions with each guest as he served them and they entered the lounge.

I would never go to the manager unless it was warranted. I don't want to hurt someone's lively hood because I'm making an assumption that they did something wrong. It really does take a lot for me to complain. Even in bad meals at a restaurant, I don't complain, what's the point, just don't go back again and it's not the servers fault, so leave a decent tip.

The main reason I'm trying to bring this up with IHG or whoever is because I can defend myself. My English is good enough to file complaints and I don't want this happening to others that won't or might not defend themselves, simple as that.