Coming to think of it

You know what it is about those people calling you out on using normal English with ponies? Aside from that they are boring, not funny, liked by no one, universally hated, and will continue to live in their secluded world of illusion wherein they give and receive happiness from everyone without minding too much the rest of the world and it will only be at the age of 43 that they realise what a lie they've lived and they seek one partner after the other in fear of dying alone before finding somebody who turns out a few years later to only have faced the same problem and breaks apart with them in pursuit of true happiness that they'll never find because they threw their lives away?

Well, besides that, they are also actually wrong.

You see, ponies are a different society than we, even though many things overlap. They seem to share our basic law and order, with the best reference probably being a parlamental monarchy in our world. (You know, England. The princess isn't there for doing bollocks' worth, she looks pretty to tourists while her squad of advisors handle everything ever. I know that this explanation is necessary and this saddens me.) Though there obviously are a lot of differences, too, such as actual differences between one another, (any human to another has at most 0.1% of genetical difference,) other customs to account for the races and the imbalance of genders, and changes in mentality. For instance, I've come to find that a pregnancy is much more valued in Equestria, as are mares capable of birthing healthy colts. Even with allowed homosexual reproduction (that is, allowed as even possible. Since there was never a Lord of Dickheads to be misunderstood for millenia afterwards, nopony is actually opposed to homosexuality) it would be hard to find a partner. Rape could be punished less if well-explained. Oh yes, not to mention that there's literally no chance of impregnation if out of heat, which, depending on your preference, is once a month per mare or once a year per population. Although Midnight seems rather moody as of late even though she's only soon to be in cycle... then again, calling that girl moody would be an understatement on her best of days. Either way, would condoms have been invented in Equestria? Perhaps, as a means to ensure things in heat, which would carry a much greater risk than mankind. Would they have invented Moonlaced? Such to block magic... I now have the insatiable desire to write HeatNight x Dusk Shine... for real, I mean.

You may have noticed that I called Midnight a girl above, rather than a mare. You see, another thing that we have to accept is overlaid is their language. Trust me, it's not translated, that'd sound differently. Did I mention that Polish is fucked up? So if they use the exact same language, why should they differ in what they call themselves? Let me clarify, there were never any humans on Equestria ever, so there'd be no use for those words, except that the ponies would have claimed them for themselves first. The word family of man isn't based on naming the species, it is a name for oneself! Why should ponies refrain from using words like one or, just as well, man or woman, when all those words mean is that they're referring to themselves and their species?

This takes a bit of knowledge of linguistics, but it boils down to that when the word was made, the sentient species didn't see any similiarity between themselves and other species, so they were referring to what was human rather than the species of humanity. (In fact, many people nowadays still share this view.) If ponies are to refer to themselves as all the words that are so orthodoxically enforced, then there is no reason why mankind should not do so, as well.

Besides the logical route, observation also serves. Ponies use words commonly associated with humans only. (For instance, Rainbow Dash often uses "guys" to refer to the others of the group.) At the same time, there is a declining usage of pony-specific words, especially non-catchphrase ones (which means ones which are not stuff like anypony) and especially during the later stages, when we were watching no more ponies than humans walking on all fours. (In fact, somebody hacked Hasbro and put up cameras before the makeup crew arrived. I'm genuinely sorry for posting this here.)

And I am officially procrastinating hard. Who would have guessed it is so hard to kill off your OC. So that you at least have some value out of this, spunk wee wee, bingle bongle, seventy-three, SCIENCE.