The Mac and Windows U/I are different by design.
It was decided long ago for Mac users would never use a Windows application, or a Windows application that just ran on the Mac, it would be a bad decision. This turned out to be largely true.
Since then, there seems to be some push back from people like yourself.
We are moving towards an interface compromise that is closer to each other.
That said, there are U/I peculiarities on Windows and Mac where there is no middle ground.
Moving forward, there will be some noticeable unification, but they will never be exactly the same.