There is ignorance, idiocy, and then Tide-pod-eating condom-snorting idiocy. And at least 52 people are in this category.
At least he/she got the hetero-normative cis part correct. I suspect that the first humans to define a "year" were likely not as "white" as this person believes. Solar calendars are really, really, old. Zodiac calendars are also really, really old. Heck, there are even "years" defined with more or fewer days, and calendars without the concept of a "year" at all. Some still in use today.
But, hey, why let facts stand in the way of a good rant.
What do you do with the Chinese calendar? D'oh! Nevermind. It's not Western.