Why does someone have to face injustice themself to do something about it? White people faught for abolition and in the civil rights movement, straight people are the reason we have gay marriage...

Or is it just that you fundamentally disagree with the "need" for gender neutral pronouns and this is your way of ridiculing it? I'm afraid I don't follow your logic at all.

Are you unable to think of an argument? It's not hard to list some ways in which using 'they' as a singular pronoun when gender is ambiguous is confusing and undesirable. It's not a stretch to then argue we should have a better alternative.

Doesn't "they" mean more than one person, without specifying gender?

I would argue that languages evolve when someone needs to express a concept and reaches for a word, finds nothing, and improvises. The first person who does it always stands out, but if other people around them have the same need, the word catches on. Eventually, the perception of arrogance mellows and it becomes an ordinary word.

I don't like artificial pronouns either, they stick in my mouth and feel weird, and I'm lazy so I use they. But other people have other preferences or needs so I try to tamp down any unproductive instinctive reaction in myself- who am I to say in a hundred years we won't be using them? After all, our post-singularity AI offspring won't have the same idea of gender as we do...

You're right, but when people began to hear it again in the 20th century, they didn't think "ah, I know that word! It's Old English." It wasn't, at the beginning of the 20th Century, an English word at all.

I'm not sure reintroducing a word from a long-dead language (even if it's an antecedent to your own) is much different from just making a new word up, other than it might sound a bit better if the language is related. Words can come from anywhere; why not invent the ones you need? Laser radar quark...

It's a person suffering from Saint John's Wart per Google. Apparently, it's been going through the bloodstream into the brain to have mental effects that are hard for scientists to characterize. Suffice it to say, it may be responsible for a good chunk of non-video traffic on the Internet and its victims may not even understand why they involved themselves. DARPA and the FDA are said to be teaming up to deal with the epidemic but the results remain to be seen so far.