I'm not quite sure what you're trying to tell me.

I didn't say that Stallman has no principles, or that he is inconsistent. For me, there's just one main question: Is his conclusion -- that all software should be free software -- rational?

To be rational, a conclusion should follow logically from true premises and at least one fundamental moral principle. It's been a while since I studied Stallman's writings, but back then, I fail to find any sound argument. It was mostly just logical fallacies. Since I doubt, he changed his arguments, this probably still holds true. If so, this is a sufficient reason for me to not support his cause.