There is no contract to provide weapons on the border nor has any official stated they are interested in doing so. It's just pointless hyperbole.

People die crossing the border trying to avoid those cameras, because it forces them through the most dangerous parts of the desert.

The same tech is deeply wrapped up in the Israeli occupation of Palestine.

It's absolutely absurd to pretend that the whole business of border enforcement tech is not stained with blood.

If you're interested in the relevant US history and why it's characterized as militarization and violence by those opposed to it, I recommend this book: https://www.goodreads.com/book/show/7861.No_One_Is_Illegal

(The book has a point of view and makes no apologies for that. But if you want to see why people who disagree with you see the US border and its enforcement the way they do, it will provide that for you.)