Pluto is now officially considered a dwarf planet. But so are Ceres, Haumea, Makemake, and Eris. Source

But there are possibly more, estimated 200 in the Kuiper belt and 10.000 in the region beyond. Source

So it’s more like flat earth believers and Ceres, Haumea, Makemake, and Eris deniers in this picture.

Whoa whoa hey now. Just because we know plutos a planet does not mean we think the earth is flat. Normal people over here, hello! And besides the time cube doesn’t allow for a flat earth, that would be ridiculous.