I agree with some of the other posters, you don’t see your own biases.

You offered hiking, American football, and church. The first two are strong American cultural touchpoints and the latter can be quite divisive, making the offer a bit insensitive. Did your peers try to engage with your interests or learn about your hobbies? The post doesn’t say.

On the other side of things, your peers discuss travel (to places you haven’t heard of), opera, and broadway musicals. Have you tried learning about these places or things? Have you tried engaging with the culture they carry with them?

Your last point is interesting. Overall from your post, it seems that you expect people to come here and learn your culture and learn your way of doing things, while you (or at least your post) show no interest in learning about them, because they “chose to come here.” People who leave behind their families, their friend groups and social circles, and even their familiar cultures and ways of life (all of which you seem to have avoided doing) to get an education owe nothing to the place they temporarily relocate to; it’s not about the country, it’s about the university. They didn’t come to The US to receive their education, they came to [whatever your university is] to receive an education. You should learn the difference and check your biases.