You have to be fucking with me.
You cut it with this OXO 26681 09491001299 Good Grips 4-Inch Pizza Wheel, Stainless Steel https://www.amazon.com/dp/B00004OCJN/ref=cm_sw_r_cp_apa_i_Z9WDCb52K76FG
And then you fold it in half and eat it with your hands.
I've been really happy with the OXO pizza cutter I bought a few years ago. Admittedly, I don't make pizza all that much, but I must have sliced at least 50 or so with it, and it's still good as new.
No, I mean this one: https://www.amazon.com/OXO-Grips-4-Inch-Pizza-Wheel/dp/B00004OCJN
You're just using cheap pizza cutters with bad bearings. This OXO Good Grips Pizza Wheel will change your life.
And the fact that there are people cutting pizza with knives and forks is what is strange. In America pizza is always cut in to slices with a pizza wheel before serving.