Why Can't Illegals Stay Out of America?

I don't know why illegal aliens can't just live in their shit-hole country and deal with it. It's them who the liberals support (despite being criminals!). Under Trump, ICE has truly made America safer, and I feel like America is finally coming back. We are kicking Iran's ass, the economy is booming, and Trump released the files that Biden didn't. The main thing that stands in the way is aliens; if one is here illegally, they are a criminal. Full stop. What do y'all think?