Why is Zig Forums anti-military? You might as well ask why Zig Forums is anti-zog or why they're against the jew. All those example of perks you listed are either pure LARP or zionist propaganda so you can go fight for the jews in the middle east. These anti-zionist groups are either purged, co-opted, or never amount to anything and while the rail against the jew they never accomplish anything of note.
Why is Zig Forums anti-military? We aren't is the easiest answer as any nat-soc knows the great benefits of a army of patriots has on both the military and civilian life but most of it isn't white and the white ones sticking it out are usually either natural bootlickers or fanatic zionists. Both of whom would happily Waco their own people seeking independence from the evil that is the United Slaves of Isreal.