Texas is about 170 million acres, and earth's population is 7.4 billion. Now, you could give everyone in the United States a half acre in Texas, in theory. In fact, you could, in theory, house the entire population of earth into Texas, at a population density of 27,000 people per square mile.
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The USA is huge. I urge you to get out and see America, I rode a Greyhound Bus across the USA and back, it was great, the bus zig zagged all over going across America and back. We have a lot of wide open land in the USA, we have plenty of room for whoever wants to live here.
Salute,
Tony V.