On the face of it, the statement "The United States has no right to tell another country how to run, or invade it to dictate how it should run." sounds very reasonable, however I am not sure there are never exceptions.
I think it's better to say "
Sometimes it might be okay to tell people what they
can't do, rather than saying sometimes it might be okay to tell people what they have to do. But, yeah, the essence of what you meant (I think) sounds viable--sometimes evil people do evil things and other people have to say, "you have been bad, you cannot do this anymore." But I don't think it's ever okay for us to say, "you can't do this and you must do this," like invading a country and telling it that it must be a republic now.
Darxbane has a great point--trying to find a reason to dislike a candidate because you dislike a candidate is silly. If you disagree with her platform, then you disagree with her platform. It's probably best not to judge the candidate before you her him or her speak, though, otherwise it's easy to misinterpret what they say or infer intentions (for the better or the worse) to match your pre-existing thoughts. The fact is, that is what a majority of politics is (thanks to a party system)--pre-existing ideas on candidates before seeing, hearing or having any knowledge of them, sometimes followed by research to back the already made biases.
