The illegals will turn these places into dumps.
As pointed out, they already have.
But the big point is the revolting hypocrisy of the so called Environmental Movement.
It was fine for them to scream Overpopulation! For 25 years starting in ‘69 leading to massively declining birthrates among the American population. But as soon as illegal immigration from Mexico ramped up in the early 90s, the Enviro screamers were squelched: brown bodies came before languid landscapes. Murray Gelbaum bought off the Sierra Club with a $100 Million bribe and they’ve been supine ever since.
And now we all see that the so-called Greenies were always Watermelons: red on the inside. The “environment” is just a wedge issue to gain state control. If the dirt is needed to warehouse once and future voters, then forget the bunnies...the Vanguard of the Revolution gets the space.
One need only to look at the sea of garbage they've left in the Rio Grande.
I think Yellowstone is safe.
No one I know could survive the winters there for very long.
Yosemite and Grand Canyon is where we will see the worst of it.