Border enforcement represents an unparalleled assault on the free market.
According to Gallup some 750 million people would move to the US. The average income of a 1st generation immigrant is ~45k. That is a whopping ~30 trillion dollars of market suppression every year. That's almost twice our GDP worth of market suppression.
There is simply no other government program that suppresses the free market to that degree. There is simply no other government program that suppresses the freedom of individuals to that degree.
Yep. Trumpsters aren't libertarians, and they're not conservatives. They have no interest in free markets.
Now, personally, I like borders. But I also profoundly distrust the free market in certain fields. If you claim to trust free markets, you either hate borders or are a hypocrite. Period.
They're on your side.