Fit For Office ???

I keep hearing claims that President Trump is not fit for office. Here is an example:

http://www.newsweek.com/trump-cant-remember-faces-friends-and-has-childlike-fits-according-new-book-770518

There have been many previous instances in which sitting presidents ACTUALLY have been unfit. Here is a discussion of them (which includes the revelation that FDR may NOT have had polio):

http://www.wbur.org/commonhealth/2015/02/13/presidential-neurologic-disorders

Frankly, I see nothing which makes Trump any more fit or unfit than previous presidents in my lifetime. The perceived difference may stem from the fact that EVERYONE seems to want to betray Trump and leak dirt on him, real or imagined.

That suggests to me the real "unfitness" may exist in Trump's staff, in the US Congress and its staff, and in the MSM which allegedly is supposed to keep us informed about what is happening in DC. Why do they let Obama ad-Dajjal, Hillary, and their coterie literally get away with murder and treason, but go ballistic at everything Trump tweets? I would say they are FAR more "demented and deranged" than he.