I have actually thought about this a lot in my life, I think a good compromise is to develop regional constructed languages that correspond to geography and cur

I have actually thought about this a lot in my life, I think a good compromise is to develop regional constructed languages that correspond to geography and current culture. So for example, here in Alaska, Athabaskan languages are mostly dead, Yupik and Inupiaq is still around but English is predominant pretty much everywhere except west Alaska and the occasional community. Sugpiaq and Alutiiq are basically gone, Tlingit has a revival but it’s not around, Eyak is dead, etc. Why don’t we create a blended conlang that can take pieces of each of these languages in the form of vocabulary and grammar - even though they’re very different grammatically and in terms of lexicon, we can make a language that is relatively easy for people to learn because it’s regular, substantially different than English so it’s not “colonizer-tongue” and largely unique to the geography of the place. You could do the same thing in Europe to create lingua-francas.