I just made another comment that elaborated my stance more too.
I didn't realize there was a trend of European users. I haven't really thought about it, but Lemmy could use some sort of translation layer to facilitate multi-but-not-bilingual community. There's a lot of German, French, Spanish, and Portuguese speakers I'd probably love interacting with and would never know! For now I rely on bilingual non-English natives or the little French I remember and just lurk.
You're totally right. My optimism gets around that by hoping if it isn't Lemmy, this federation, that federation, some other new initiative or tech, community will find a way to make itself. I guess my bigger worry is accessibility and notoriety/viability, but I think that will always come in time too. There are smart, willing people out there, and gathering is human instinct.