No, America was founded and established by settlers.
Yes, settlers who migrated from Europe, mostly England, France and Spain.
Migrated = immigrant.
I really don't see race as a thing to be proud of. Its all chance. I'm proud of accomplishments, not what I was given or not given by chance. I'm sure if I was black or Asian or whatever I'd still want to be the best version of myself and work with what I've got. White supremacists, black supremacists, Asian supremacists (is that a thing? I'll assume it is) are just people who have nothing else going for them, so they blame all the bad things in life on other races and all they have to be proud of is being whatever colour/ethnicity/geographical location they were born in. Its kind of sad... But I guess if I had nothing going for me in life I might feel the same way, too.