“Putin seems to intimidate well enough.”
That’s because he’s basically a Czar. Size doesn’t matter when you are Napoleon, lol. Although it is going to be quite a study in contrasts when you put Putin and Truump side by side in a meeting or behind podiums.
Obama and Kerry are both very tall. Tell me more about how people are intimidated by tall people. Both have 8 inches + on half the people they deal with. Chesty Puller was 5’7”, not much intimidated him either.
Those people laugh at them.
If physical attack right then and there is off the table, height does not intimidate anyone with the stones it takes to become a leader or chief diplomat of another nation. You are in chick fantasyland if you think otherwise.