@Be_led_by_His_Spirit Said
If you cross the North Korean border illegally you get 12 years hard labor.
If you cross the Iranian border illegally you are detained indefinitely.
If you cross the Afghan border illegally, you get shot.
If you cross the Saudi Arabian border illegally you will be jailed.
If you cross the Chinese border illegally you may never be heard from again.
If you cross the Venezuelan border illegally you will be branded a spy and your fate will be sealed.
If you cross the Cuban border illegally you will be thrown into political prison to rot.
If you cross the U.S. Border illegally you get a job, a drivers license, a social security card,
welfare, food stamps, credit cards, subsidized rent or a loan to buy a house, a free education, free health care, a lobbyist in Washington, billions of dollars worth of public documents printed in your language, the right to carry your country's flag while you protest against the very country providing all these things, and against the very people who are paying for all these things ? but not for very much longer.
If you cross any countries borders illegally and get caught the least you'll get is detainment and probably deportation.
If you can managae to fake your way into a country, no matter which one it is, you'll have acess to most if not all of that countries privileges.
You make it sound like border control and prosecution is purely an American problem when it clearly isn't.