Thora I seriously doubt anyone voted Leave purely because they find Boris amusing. 
But the...er...beauty....of democracy is that we allow people of all levels of intelligence and none to vote for whatever reason they like, for whomever they like and to hell with the consequences. Until we remove democracy we have to live by the results of it.
And actually, we have Tony Blair and Gordon Brown to thank for this. There are many reasons why so many people are dissatisfied with the EU but it has undoubtedly become mostly about uncontrolled immigration and the effects of that, and the fear of what will happen if it carries on in the same vein.
If the people who held all the power had listened 15 years ago, and then 10 years ago to some of the very real concerns of working class people perhaps we wouldn't be staring Brexit in the face now. Whether we agreed with them or not is not really the point is it? In a democracy you need to listen to the people, even the Stupids and the Racists, and find some level of compromise to appease them and give them at least some of what they want, even if what they want smacks of protectionism, racism or xenophobia on your opinion.
That level of not listening and dismissing people on the basis of being thick and racist lost Labour the last two general elections, and this is Leave result is a hangover from that, I think. There is a sense of 'you've been warned, you've been warned, don't push us too far, don't, don't, don't...shit. You did it. Now look what you've done. And now you need to clear up the mess.'