Earlier quoted context omitted.
That's sort of what bothered me the most at the time. It seemed like the argument was that it was "emotional" or something to keep Pluto a planet when there might be so many of them. But I never understood why it was less "emotional" to insist that a planet be a certain size or that there should be a certain number of planets.
It is emotional reasoning to want Pluto to be an exception to an otherwise universal definition, because the reason for the exception are the emotions of some people . Picking any arbitrary generic definition and applying it universally is less emotional, because there is no emotional reasoning necessary to explain why any object is or isn't a planet.
Scientists just ignore the rule about neighborhoods at times for convenience — how else would you claim to have found an “exoplanet” if you cannot also rule out “exo-dwarf-planets” in its neighborhood?
People can tell when a rule was added for a specific reason that the authors don’t want to say outright. It’s a sort of appeal to authority rather than a scientific claim. That’s dishonest, and people push back when authorities are dishonest with them.
We don’t make the rules, this is just what a planet is now. Wait, did you say we do make the rules? No, of course we didn’t vote on what our scientific result should be… that would be unscientific. We ARE science.