seriously. it's not that big a deal. if people in gaza are still standing up to their oppressors every day then you likely have zero excuse for not doing more IRL shit (political reading and writing at home are good, but don't mean anything if you're not applying that theory as practice and then assessing the results and adjusting your practice accordingly).
Spiritually, disabled people can usually go outside/build communism. "Go outside" is really about logging off from your internet patterns and trying to have human interactions, which you can do from home in case a disability makes literally going outside uncomfortable or impossible.
Of course, with generalizations we should also understand that there will be exceptions but that naming them right away would prevent the call to action from being pithy. So if a person's disability precludes building socialism, I'm sure OP and others would understand.
Though I would say that there are many ways to build socialism, so even someone that thinks they can't might just be unaware of ways they could help out.