I think I mostly agree with you too, and what you've said has been interesting and I appreciate it.
> Who are you to say they're being a bully? Maybe their intent really is to show tough love and honesty.
I think there are two places where we differ.
1. When you are being bullied, you know you are being bullied, and you are the expert who can say it's happening. It's possible to misinterpret this, and the tactics you propose are correct, but I don't like the implication that there's simply no way to know. In my view, a relationship is an epistemology; you know someone is bullying you by the process you know that someone loves you, it may not be possible to describe, it may not be infallible, but it is real. (Perhaps part of the difference in thinking here is that I'm saying you can know someone is being a bully in this way, not whether they are, in their heart of hearts, a bully.)
2. Their intent to show you "tough love and honesty" is not at all inconsistent with being a bully. Consider the character of Tony Soprano, if you're familiar. One of his central struggles is that he deeply cares about people, but the only way he can relate to the world is through violence and intimidation.
When I say that the bullies I've encountered in my have justified themselves through "tough love", I don't mean to say that they were lying. Only that, as GGGP pointed out, it's not an acceptable way to communicate.