Gendered nouns are kind of silly and antiquated when you think about it though, and many languages have a neuter gender too (e.g. German). The "X" suffix is an attempt by younger Spanish speakers to introduce a neuter gender to their native language.
English doesn't have gendered nouns, but we do have gendered pronouns, which not all languages have. Chinese doesn't have gendered pronouns, which is why you'll often hear native Chinese speakers accidentally refer to a woman in English as "he".
Today, young English speakers are trying to popularize "they" as an English neuter pronoun, and it's not too absurd: we already use "they" this way when the gender of the person is unknown. For example, if you found a random wallet, you might say, "Someone lost their wallet," and it would be acceptable.
Intentionally changing language isn't unprecedented either: in the 1970s, feminists successfully introduced "Ms." as a female equivalent to "Mr." to denote a woman who may or may not be married, (instead of Miss and Mrs.).
Ultimately, most language evolution is driven by young people: they're bending their native tongue to better describe their world. And that's a good thing. Language is supposed to be fluid and dynamic. We shouldn't be constraining our thoughts to a static unchanging language invented by our ancestors to describe their world that no longer exists. It's a tool meant to serve us, we're not meant to limit ourselves to it.