[General] continue toying with the lives of nearly a million people who are already our fellow

[tahasozgen]

Hi There;
I want to ask a sentence. The source is New York Times and the article is "The Government Is Dead. Long Live the Government". Here is the sentence that I cannot understand:

"First, we give Dreamers green cards provided there isn’t a criminal record. If they’ve served (or would agree to serve) in the military, I’d give them automatic citizenship. And if the political price for that is funding for a border wall, I would swallow it. I’d rather squander money on unnecessary concrete than continue toying with the lives of nearly a million people who are already our fellow Americans in nearly every respect save paperwork."

There is a word concrete that I think the author refers to the wall that Mr Trump has promised to build through the Mexican border. The last sentence is grammatically incorrect I think. The phrase "continue toying with the lives of nearly a million people who are already our fellow Americans in nearly every respect" is clear and enough. I cannot understand "save paperwork". Could you please explain?

Thanks in advance.

 

[Rover_KE]

... and paperwork means citizenship documentation.