If you were actually responding to his point, the word "conscripted" or something verbiage equivalent, would have to be included in your rebuttal.
So how about you respond to the Indian Citizenship thing? We hung em, we jailed em, and we fined em, but they weren't citizens.
I take this to mean that subject to our laws does not mean the same thing as "subject to the jurisdiction thereof" in the context of the 14th amendment.
I think you just made my point. People who aren’t citizens can be “hung, jailed and fined” because they are under the jurisdiction of U.S. law.
With reference to “conscripted,” we have an all-volunteer military, however:
on the other hand, You must register with the Selective Service System, if:
You’re a lawful permanent resident (LPR) in the US, that is, you have a “green card”
You entered the US without going through the proper procedures with the US Citizenship and Immigration Services (USCIS). In other words, you’re an “undocumented immigrant” or “illegal alien.” Sometimes this is referred to as “entering without inspection” (EWI)
You’re in the U.S. on a temporary non-immigrant visa, like a visitor’s visa, and you fail to maintain legal status for more than 30 days, such as by not renewing your visa
You’re in the U.S. on a student visa and you fail to maintain full-time student status
You entered the U.S. under the visa waiver program (VWP), which allows certain foreign nationals to enter the U.S. without a visa, and you stayed beyond the 90 days allowed under the VWP
You’ve been granted refugee status or asylum in the US, which means, generally, you’re in the U.S. because it’s unsafe for you in your homeland
You’re working in the U.S. as a special seasonal agricultural worker
You came to the U.S. under a valid non-immigrant visa but your Form I-94, which sets out the details of when you entered the U.S. and when you must leave, has been expired for more than 30 days.
http://immigration.lawyers.com/general-immigration/us-immigration-laws-and-the-selective-service.html