No Labels as a name isn't even going to appeal to left-leaning folks, it sounds nonsensical and oversimplified. Things need labels, a Nazi is a Nazi. Useful label, even if the Jewish-hating, strong ethno-state sorts don't like it.
It'll appeal to moderates, but that'll pull from both sides.
Unless they run an environmentalist or something? Like a Green Party type spoiler? Would have to be an idiot not to run under their own banner though, raising awareness is their whole thing.