@Vernon,
Thank you for reporting the issues that you're facing.
All,
We are closely following the discussions on this thread & taking note of the problems that you're facing.
Newer age responsive layouts use HTML5 elements that would not get rendered accurately in design view. There is really no option but to move to Live View.
We are working on making Live View editing as easy as possible for you. Please list down the workflows/functionalities you find missing in Live View.
-Subhadeep