I understand that achdus means everyone together and different people have different views of who “everyone” is.
I would never be so arogant as to decide who is included in everyone, I am making the observation that for some, it was all jews and any exclusion is offensive while for others it means every jew who accepts Hashems Torah without trying to round the edges and cut the corners to shrink it to fit each generation.
My mother worked in a Jewish social services organization. She wanted us to be raised to love all Jews and would praise all the reform and secualr Jews who would give up hours and days to pack and deliver food for the community. Especially on purim and before Pesach when nobody else helps. My brother made some comment to her about this being their “judaism”. My mom did not like that he disregarded what they do for what they don’t. My mom wanted us to love all Jews, even if we cannot approve of them.
to me, this illustrates the “two sides”, the lines just get grayer when as you move along the spectrum.