When it comes to Johnson, I tend to agree with his former boss, Max Hastings ...
https://en.wikipedia.org/wiki/Max_Hastings
In June 2019, Hastings described Boris Johnson, the Conservative Party leadership candidate, as "unfit for national office, because it seems he cares for no interest save his own fame and gratification ... [his] premiership will almost certainly reveal a contempt for rules, precedent, order and stability ... "
...
He has continued along this line of argument throughout the Johnson premiership and he said that "the experiment in celebrity government to which the Conservative Party committed us has failed, and is seen by the world to have failed. The foremost task for a successor is to restore Britain's reputation as a serious country."