Or you could use your head for a moment.
Rather than a kneejerk boycott of the scouts for the actions of rouge members, you should consider that you only drive the scouts further into financial hardship and make them more vulnerable. To deny the BSA a revenue stream is not going to help them combat this assult.
You should instead write a letter encouraging the BSA to revoke Philly's charter and deny permission to use all seals, uniforms, and name branding associated with the BSA until such a time that they repeal this policy.