First of all, you do NOT have a right to determine who enters the country. If you think that then you have no concept of either how the US government is supposed to work or what property rights.
See, the US government has no rights. It is not a person. It ha s"delegated powers," things it can do because the people who have the rights to do those things have authorized it to act in their name. The government then cannot do anything that you cannot do.
Property rights say that you can prevent anyone from crossing onto land you own directly. You can absolutely regulate your own land. But you neither have the right to tell me who I can or cannot have on my land nor can you determine who can or cannot go onto land no one owns. Once you do either of those things you are violating my property rights and the rights of others to move across unowned land.
Since you do not either own all the land bordering the national boundaries you cannot authorize the government to or all the land in the country you have no rights whatsoever to limit someone else in their ability to travel across the national lines, to emigrate or immigrate. Just because you make up a giant gang that runs a protectionist scam on the public doesn't mean you have any more rights than the individual does. It just makes you a tyrant.
Secondly, are you naive when it comes to immigration? What do you think happens when the US thugs burst into your home, seize your property, steal you from your home, shatter your family, and throw you in a rape cage? What do you think happens when people are caught crossing the border? What do you think laws are? Laws are force and threats of death. You are saying that you think it is okay to kill someone who refuses to go back across an imaginary line you made up to create a huge "safe space" for your "ideals." You want to declare that you are for immigration laws? Fine. But don't be a coward. Actually face up to what it is exactly that you are doing. You are okay with killing people for a victimless crime, because they hurt no one by crossing a non-existent line on a map somewhere. That isn't justice, it is tyranny. All men are created equal with the exact same unalienable rights. Not just Americans.
It is, in essence, what ISIS does. You are threatening to torture and murder someone because they think differently about government than you do. It is sick and hypocritical.