It's because being gender neutral is a product of Anglo-American civilization and Anglo civilization is the best out there for tending to lean libertarian compared to the others. Spain and France are too influenced by the Catholic Church and all of their authoritarianism. The Anglos and Germanic groups believe in more liberty by comparison.
When I say Anglo civilization, I don't just mean stereotypically white English speaking countries. I also mean places like Jamacia, Nigeria, and Papua New Guinea as well.
I am proud of my civilization and this civilization happens to be gender neutral, so I like using gender neutral pronouns.