It does not address immigration. Who can enter? Who must leave?

^^^^^Pretty sure, at the time of the country’s infancy, when the population was like ten (yes yes, hyperbole), immigration was the least of their worries and the last thing on their minds.

^^^^^^
And for long, immigrants came here to work, not to get free stuff. Not a dime of taxpayer’s money.

The biggest problem with the constitution is that it's so easy to violate. I guess I am speaking more to the Bill of Rights, but either way. People don't really have any rights. Everything is infringed upon. The taxation system is insane, gun laws are insane, every amendment has loopholes and stipulations. Politicians do whatever they want. The courts are just a big political scam.