I’ve seen the little nerd that led the effort to remove planet status from Pluto. His name IIRC is Mike Brown. Their stated reasoning at the time was total SJW logic, saying it wasn’t ‘fair’ to other objects out in the Kuiper Belt that were of similar size to Pluto, that Pluto gets planet status and the other large objects do not. What an argument!
Europe, and their Euro-centric comrades in the US academia groups, could not tolerate Pluto. It had been discovered by American research!
Yes, it is different from others. But their “definition “ was invented and edited to deliberately exclude Pluto, NOT to define “planets”.
Rather, they should have just recognized trans-Pluto outer planets as a group. Just like “asteroids” and “moons” are a group.
He wanted his discoveries to be considered planets, there wasn’t a groundswell of support for that, so, if he can’t get credit of a planetary discovery...
He’s not a little nerd, though, he’s an accomplished astronomer, who now takes observational data security much more seriously.
https://www.nytimes.com/2005/09/13/science/space/one-find-two-astronomers-an-ethical-brawl.html