“Why shouldn’t a US citizen(s) be able to make citizen’s arrests of these criminal aliens if they are voting illegally?”
I didn’t say a citizen shouldn’t be allowed to make a citizens arrest for illegal voting. But if you do you had better be able to show reasonable suspicion or proof of your claim. If not YOU could be arrested. So now you can answer my question. How will you know the person voted illegally?
“How will you know the person voted illegally?”
I described a scenario where it is known. You seem to be describing a scenario where it not known.