Being a part to the moral community doesn’t rely on reasoning ability, but the laws of the moral community would be reason-based. They would have to be justifiable to others. Membership in the community relies on consciousness and free will.

If you read the article I sent, I argue that ascent to the social contract would be based on agreement to principles that are in accordance with higher-order values. Morality asks what principles of conduct would free reasonable people accept. It doesn’t say morality is reserved for the reasonable.

I’m not sure what freedom you’re talking about but if you have a specific question I’m happy to address it.