I was asked why I dislike something. I answered. "Unsubstantiated" is a really weird thing to use in the context of opinion. An unsubstantiated claim exclusively applies to fact, while I was very clearly giving my opinion. None of the things listed can be objectively measured.

I'd be perfectly happy to argue for them, but I don't think this is the right place to do it. Frankly, I don't care about how you handle your own opinions. When I am asked about my own, I'll tell them. I won't try and sell them as factual to anyone else, though, which is what going into more detail would require me doing in this particular instance.