[ardent_uno]

If your real goal is "unity and equality", then everyone should learn one language. Then, because different languages often foster different cultures, we will eliminate significant differences in culture which are so often the source of human conflict.

One of the greatest gifts any superpower bequeaths to the world is a de facto universal language, such as Latin in Roman times. America being so dominant economically and culturally has given English to the world, which has reached a level of popular ubiquity unlike the world has ever known.

This is a very good thing for the world.