Are there any Native American Indians left?

I was born in Wichita, Kansas in 1976 and growing up there, Native American Indian life was at the forefront of our daily conscious. I recall we had yearly River Festivals and parades that celebrated Indian heritage. The 44ft tall Indian statue, “The Keeper of The Plains” in our downtown was a daily reminder that Indians were once the powerful force that owned that region and how we should be thankful that we had a distinguished and exotic civilization in our not-to-distant history.
When in elementary school, we’d often take field trips to explore how life was in Kansas before it was declared an official US state. With ample museums that pay tribute, Wichita even has an amusement park dedicated to life in the 1800’s regarding that region preserving tee-pees, old schools, saloons, and relative artifacts.
I had a best friend in the 5th grade whose family was full Native American Indian and I thought nothing of it and in hind sight I think I took knowing her for granted.

Now I’m grown up and live in Chicago, and in hind sight, it’s depressing fully accepting that all the Indians that once dominated America are now extinct. Their heritage is no longer part of my daily life, or anyone else’s (accept for the folks that consider their contribution to Indian society a weekend skirmish to a HoChunk or Potawatomee Casino).
I’ve met 2 authentic American Indians in the 12 years I’ve lived in Chicago. They’re both so pretty and pure bred one can’t help but to be a little envious, but does a real population of them even exist anymore? I wonder if they realize what true jewels they are as members of what seems to be a dying race.
Of all the true genocide atrocities in all of human history, I think the American Indians had it the worst. Breaks my heart, too. Are there any of you left? Not those of you that proclaim to be 1/8th Cherokee (I believe those of you that do proclaim to be Cherokee just say that because you think the word ‘Cherokee’ sounds cool), but the ones that are at least 50% true blood of any tribes in North America? If so, do you have a recommendation on anything I can do to help you proliferate at least a little?
For those of you that’re responding back with such annoyance, my father is 1/2 Sioux Indian, therefore I’m a little myself.
So I’m genuinely interested in this topic. I truly don’t understand why those of you that claim to be N.A. responding with anger. Not a good way to “represent”…