CMV: Insulting Americans is an insidious form or mate guarding outside the US

I have this theory, but I'm open to change my mind if Redditors present some good points. For context, I'm a Portuguese young woman living in Germany and I've travelled a fair bit for education purposes. Seems like no matter where I go, whether that's Portugal, Germany, UK, even Africa, people always love to talk trash about Americans. I find it quite strange, as this behaviour is deemed unacceptable and xenophobic when targeted to other countries, but for some reason it's socially acceptable to do it towards Americans. Seems quite hypocritical. Every society has its flaws, and of course the US isn't perfect, but to so vehemently say all Americans are stupid, uneducated, etc is a huge stretch. Especially after visiting the US last year, I was really impressed by how warm and intelligent Americans can be. My dating experience in America was also the best I've ever had - men were very chivalrous and masculine compared to European men. So after that, I really started to connect the dots and I now am of the opinion that hating on Americans is kinda like hating on the cool popular kid with money. People just do it because they know they can't compete. Especially European men seem to have it ingrained in them to be so hateful towards Americans for no reason, and I'm starting to think it's so their women don't get curious about dating Americans.

Anyway, let me know your thoughts! Just to clarify, my issue isn't with pointing out flaws in aspects about the US, but with irrational hatred and negative stereotypes that Americans have to deal with, whereas saying these same things about other countries would be considered socially unacceptable/xenophobic.

Edit: Thanks for your comments - it's really helping me understand the issue better. Seems like my "theory" is very biased due to my own experiences and there are many important factors I did not consider that shape people's opinions of US citizens. However, I will always be of the opinion that talking trash about anyone is very unattractive and not really constructive or providing any solutions, but that's just how I see it.

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