Like everybody in France under 45 is fluent in English, and who the fuck wants to talk to an older European. Every single French colony without exception is phasing out or has phased out the use of French as France was such an awful colonial power. Did you know that Eclair is pronounced aey-clare? This does nothing for me. I guess some people want to read Les Miserables in the original Foot Mold Language, just like random people enjoy reading Ovid or Cicero in Catholic script.. And just like Latin, fuck that everything has genders and complicated conjugation.
I swear, the French teachers in school were trying to impart the vibe that if we know the French language, French women would have sex with us.
Don't forget that ASL is the third most used language in the United States! No point in focusing exclusively on spoken languages, right?
In any case, I find it questionable to talk about languages in terms of "usefulness" like that, trying to measure "usefulness" based on an objective "number of speakers minus percentage who speak a language I already speak": there are plenty of reasons why a language can be personally useful to somebody, plenty of reasons to want to learn a language aside from how many new people one can talk to; and heck, learning one seemingly useless language can be great for building the skills and knowledge for taking on another language, or for becoming more flexible in using one's own first language.
That being said, you're not wrong to call the pedestal that French is put on compared to other languages a product of racism... Actually, I'd argue that a lot of foreign language education isn't even meant to get you proficient in that language, but rather more for the sake of, like, standardized school tests. Thus the languages that are put on the highest pedestal are just going to be the ones where the infrastructure already exists for getting butts in seats and tests on desks.