I can see your perspective just fine. You are the one failing to see another perspective. To Scots who live in a homogeneous culture, I can totally see why people's heritage doesn't matter to you. You come to Scotland, you assimilate and you're Scottish. Simple.

But did you know that America has the biggest immigrant population of any country? In my state, 26% of current residents were not born in the USA and my states population is double that of Scotland. Scotland is 96% white, Glasgow is 88% white, while my state is 55% white (double the population of Scotland) and the county I'm from (bigger population than Glasgow) is 44% white. The biggest city in my state is 26% Asian and has the highest density of Indians anywhere in the western hemisphere. My region is not really exceptional either. Most of the US lives around big urban areas that just as diverse. 40% of Los Angeles speaks Spanish as their primary language.

Every fourth person I see around me has come from a different country within their lifetime and many many more within a generation or two. I myself am a first generation immigrant who learned a language besides English as my first and grew up in a close knit community from my home culture. When people say "Where are you from?" around here, it's 50:50 whether they are referring to my hometown in America or the city back home my parents were born. Heritage is an inextricable part of my existence in America.

Immigrants and immigrant culture is a deep part of American culture. We are taught from a young age that this isn't our land. Everyone who lives here (unless you're Native American) came from somewhere else and it's critical that we not forget that. So whether you're a fresh immigrant or your Scottish ancestors immigrated 100 years it is our responsibility to remember that we all came from somewhere. So when Americans say they're Scottish they are saying "we are descended from Scottish immigrants to America". This is a common topic of conversation in many areas This is the distinction that you and everyone else in this thread fails to acknowledge because you enjoy ragging on Americans so much.

Americans accept heterogeneity in their culture far better than Europe and Europeans in general fail to accept or see that. In your defense, our voting system is so broken that our global representative from 2016-2020 did not portray this picture but the vast majority of Americans see our country as a melting pot.