Depends on how portable.

A while back I was making a point about the border wall farce--and found everything I would need to do "portable" plasma cutting on said wall on Home Depot's website. Not pick it up type portable, but put it in a wagon type portable. (Generator, not batteries.)

I don't know how anybody can look at those rusty metal pylons and not think their natural habitat is at home on top of a 40 year old white Toyota pickup with a suspension that long ago achieved sainthood. Like if I were looking to attract illegal immigrants, those pylons would be exactly what I would use. But then again isn't this just the standard fascist pattern? Propose a comically self-defeating solution to some problem, and build a tribal identity around aggressively denying the obvious. It's like the social justice preaching to the choir writ large.