It's not my definition that makes Trump un-charismatic. The definition you cherry-picked doesn't suit him. And neither do many others that consistently mention attractiveness and charm as attributes of charisma, including the Oxford English Dictionary on line.  

I strongly doubt that "thousands" of people from all points of the political spectrum describe Trump as a charismatic leader. I see a great deal of the contrary. The media is awash in stories that describe Trump in very unflattering terms. Some of them are well-deserved, too.

What makes a leader charismatic can be difficult to pin down. But as you to compare Trump and Hitler, how does Trump measure up to Hitler's oratory skills; his clarity and focus of vision; his iron conviction and perseverance; and of course, Hitler's ability to rise up from nothing overcoming great obstacles along the way? 

You yourself have asserted that Trump will cave in and resign before his term is out. Is that the mark of a charismatic man?