Your post is very misleading, an you use the ACLU as a reference.
The bill is designed to cover only members of AL-Q and non-citizens of the US.
I'm aware and wish I could find a whole lot of Republicans -- other than Paul, Amash and a handful of other making a stink out of this, but I can't -- largely because powerful McCain and Graham are leading the charge for this. I'm putting out what's out there on the web about it.
When Lindsay Graham one of the bill's sponsors (along with John McCain) flat out say that this is declaring the US "part of the battleground", I'm taking his word for it.