It’s a widespread campaign to shame a man who owns an empty building that it’s not even clear could have been used in time to respond to the surge of COVID-19 patients expected in Philadelphia and the surrounding region. Other hospitals are preparing for the influx, but city and state officials said Hahnemann — which has been gutted and without beds for months — would have needed extensive work just to be used as quarantine space, and it likely would not have been used as a functioning hospital.