I think my suggestion that we should "perhaps" choose different words occasionally was mistaken for a demand that we must.
Choice of words is an individalized thing and language allows us to be as flexible as we like within still getting the point across. If I choose to say "European" instead of "western" when contrasting with indigenous Americans that sounds fine to me. If you don't make that same choice that's fine too. We'll all be understood.
What you're suggesting is basically using the etymological fallacy as a basis for changing words. Because of linguistic drift, a majority of words would have up be changed at some point - words like "nice" which came to mean their opposite, for example.