My motive is to compare Trump to another Republican in a crisis.
Bush understood the magnitude of what he was facing and encouraged bipartisanship and international cooperation.
I never saw Bush tell the press to shut up or maintain petty partisan grudges
The difference is that President Bush grew up in a political family and was a politician. His father was a politician as is his brother.
President Donald Trump was never a politician, he grew up with his father being a hard-nosed developer in New York starting his own business at the age of 22. Say what you will but you do not become a highly successful developer, in New York City, by using the same skill set as a politically correct politician. Someone who is constantly trying to be all things to all people all the time at the same time not hurting anyone's feelings.
A major developer in New York City had to be hard as nails, not care about your opponents' "fellings" and get things done on schedule and under budget.