What is up with so much of the software community getting involved in meta discussion about how everything doesn't suit their perfect little bubble lately? So what, some people are going to be abrasive. Being an adult means doing what you want in the face of that.
Incidentally, I have a history of starting activist organizations and have a nearly two decade long record of attracting volunteers.
Based on my experience, the following things do not work:
A) Accessing someone's personal details with the intention of asking them why they will contribute to one cause but not another.
B) Asking an open-ended question then attacking answers that do not align with yours.
If you are burned out or just need to vent, email me and we can talk about this. I've been burned out from managing/recruiting volunteers and I likely understand the feeling as well as anyone. Use me if I can be of any assistance.