You had ample opportunity to participate in the discussion on OSM Community here https://community.openstreetmap.org/t/undiscussed-mass-deletion-of-separate-sidewalks/117491 - and could also have demonstrated the minimal courtesy of replying to my changeset comments.

The wiki does not support your opinion of separately mapped sidewalks. Feel free to put propose formal deprecation, so that it can be voted into oblivion.