That pretty much perfectly shows the left-right dichotomy. Right-winger traditionalists say "we must do this since we have always done it." While left-winger progressives and liberals say "what gives you the right to tell us what to do?" And that is the extent of the mainstream sphere.
Both sides do not realize that they are correct in a way, but both sides also do not realize that they are missing something key, a greater goal and purpose to serve and work towards, and thus will be stuck forever in their squabble.