I am not suggesting that the merely singular “they” be capitalized. “A person can’t help Their birth” is unnecessary, because there is no ambiguity involved. However, with the new usage, where “they” ...

A pronoun takes the place of a noun close nounA noun is the name of a thing, such as an object, a place, or a person. in a sentence. Pronouns are short words like 'it', 'she', 'he', 'you ...