Can one be fully integrated into your nation’s culture while maintaining their original cultural identity, and what does that look like for you?

Yes you can maintain your culture. A Mexican cooking Mexican food or dressing differently is perfectly fine.

Yes because most national culture is not in close ties with traditional culture of a persons

We are Americans first and foremost, foreign individuals and immigrants should conform to our values and traditions that does not mean abandon their own but instead to build upon them. people who say we are a nation of immigrants have their head in the past we have had 300 years to develop a blood, nation, identity, traditions and values, these should be respected not ignored.