a barrage of opinion pieces, emails, and other means of letting the left know what we think are in order.
Your talking about Philidelphia here. The former cradle of liberty is now the cradle of socialism. It is run by a bunch of leftist, socialist, stalinist, democrats. Remember the vote "count" in the last election for president. If not for the "City of Brotherly Love" Pa. would have gone for bush. Same in most all "blue" states. The big cities in most of them have turned into welfare socialist enclaves. It is a lost cause.
The rule of thumb when I was young was that public buildings were available for use by non-profit groups when the building was not in use for its "public" purpose. That is how many churches have been permitted to use a cafeteria on Sunday mornings for services. Likewise for the use of school ball fields of "little league". My own Scout troop met in the cafeteria on the 1st and 3rd Tuesday nights during the regular school year. The building was closed during the summer, so we were hosted by a Presbyterian church a few blocks away during that time.