There is no unalienable right for undemocratic governments not to have their affairs meddled with. That's an idea you don't agree with? Or do you misuse the word "meddle" which implies the interference of rights like liberals often do?
It has been a recognized principle of The Law Of Nations, for the past two hundred years, that nations do not have the right to interfere in the domestic affairs of other independent nations. That is, indeed, one of the principal criteria by which you would identify an independent nation.