Hi Phoenix Rising.
Well similarly I studied Psychology but with CBT as one of my subjects . I have also had intensive CBT therapy AND DBT therapy personally. So I surely must have learned something, I do wonder why you appear to keep trying to correct me and offer your own insights though, ....
Admittedly I was unaware of the CBT book by Marsha, but It's existence doesn't prove that DBT and CBT can be quite different in focus.
What I think might be happening is that you may be interpreting some of these ideas differently.
For example , You mention Marsha says change is important right? I never disputed that but I think she is probably referring to generally changing as a person NOT specifically a change of perception(the focus of cbt). You disagree that DBT is more about acceptance but the thing you might not realise is , I'm talking about more than acceptance of a thought (for example) . Acceptance in DBT refers to so much more than thoughts, It's acceptance of feelings, It's accepting and being in the present moment, as you would surely know,Mindfulness is a massive component of DBT and a big part of being mindful is just accepting your feelings, thoughts, etc without judgement. So I don't understand how you can not see the major relevance there for acceptance.. Anyway, this arguing is getting tiring and silly. It just feels like a silly ego contest , when it should be about supporting one another and stuff..peace