> I concede it's arguable which discrimination is of a bigger magnitude
Unfortunately you conceded nothing and chose to maintain a position which you not only failed to support no matter how many times you tried, it's also either insulting, dismissive, or absurdly ignorant. If you have to wonder which discrimination is of higher magnitude, against black people or short people you clearly don't grasp the full extent of what discrimination can be. You fail to understand how magnitude makes these 2 cases far more different than the fact that they are "discrimination" makes them similar.
Quoting MLK after wondering which discrimination is bigger (against black people or against people who are 5'9") just adds insult to injury.
You seem convinced that having a hairy mole on your face is exactly like being black or jew as far as discrimination goes. That being rejected by a woman for the mole is the same as being rejected and punished by society for your skin color. Who's to know who suffered more? It's "arguable" because they are "the same class" after all, right? So I concede that you're far more willing to dig yourself in the deepest hole trying to defend an indefensible argument than to actually concede anything.
I'll tell you one thing, no matter how you look like, if people hate your character they might use whatever insult cuts you deeper rather than something they have a personal issue with. So if you do go around telling people being short is like being black and they pick on your height it could be that they have a problem with what you chose to be rather than what you are by nature.