Again, cherrybim, precisely what is your point? If you are suggesting that frum Jews not listen to non-Orthodox cantors, feel free to limit yourself in that fashion. But that point of view has nothing to offer the discussion of the place of chazzanut in the Orthodox synagogue.
Your post however does raise something of a related issue. Many people deride chazzanut as not being truly Orthodox. The evidence for that assertion is that Orthodox schuls don’t, by and large, have chazzanim, and as such chazzanim are part of non-Orthodox movements. But the truth is that Orthodoxy in post WWII, the Young Israel movement and the newly emergin yeshiva movement in particular, eschewed chazzanut in their schuls; thus creating the notion that chazzanut is foreign to Orthodoxy. As such, people put the cart before the horse as it were. Traditional synagogue organization includes a chazzan. For various reasons, some good some bad, America abandoned that tradition.