I think it would be great if we can find a common motto for BuyFromEU like the “Elbows up” of Canadian.
I propose something in Latin because English is the official language of only two countries of EU (Ireland and Malta), but the majority of European languages are fully or partially derivate from Latin.
In addition this will show strong opposition to US language.
My personal proposition is : “Et vales, valeo” (When you are strong, I’m strong)
Please propose your motto and let’s make the most upvote comment become the motto of our movement
How about something in Esperanto?
It was created by L. L. Zamenhof, a jewish ophthalmologist from Białystok, then part of the Russian Empire, but now part of Poland (as per Wikipedia) => european language.
Esperanto’s vocabulary, syntax and semantics derive predominantly from languages of the Indo-European group. A substantial majority of its vocabulary (approximately 80%) derives from Romance languages, but it also contains elements derived from Germanic, Greek, and Slavic languages (as per Wikipedia) => at least not a 100% romance or germanic or slavic or … language.
It would at least take away some portion of favouritism because it’s not a language from any european country (like English or French), it would be equally not understandable for all of us because it’s not being officially taught in schools (is it?) and again no favouritism like it would be the case for Latin (not everyone had it in school).
Or we could dare find a motto (or translate OP’s motto) in PIE, but I’m not a linguist, only a lingthusiast.