definition was that the body had to be big enough so thst it was sble to create a "clesr"area around it...they were finding other bodies even bigger than Pluto, and saw the Kuiper belt and Pluto being less a planet because it was more like those objects...so it was demoted to "dwarf plnet."

note we're not even allowed to capitalize the name anymore

As is the word planet. The only place those words mean anything is in our own minds. I say call or classify Pluto whatever or however you want, because we already do. That it's divisive only shows how crazy and silly humans can be.