After it opened back up, no. It doesn't matter if they chose to go or not; they were paying for the membership to go. If they wanted it to be a charitable donation, they could have stopped their membership and made an actual donation.
As for when it was closed, the Washington DC branch of the Y says they are applying it as a donation:
All membership payments made while the YMCA was closed will be recognized as tax-deductible charitable contributions to the YMCA.
https://www.ymcadc.org/faqs/
