No, as it's quite hard to form a plural of Kuntz in German. You'd have to say "die Kuntzens", as "die Kuntzs" doesn't work.
I fear you are obfuscating again. There are many German Kuntzes and they have spawned even more non-German Kuntzes in many different locations. Like this one:
I fear you are obfuscating again. There are many German Kuntzes and they have spawned even more non-German Kuntzes in many different locations. Like this one: