It was always about Brexit.

As much as Labour tried to change the narrative to austerity, what motivated the British public to give Upper Class Twit of the Year Boris Johnson and his fox hunting buddies a five year license to trample all over the British commons was Boris' clear stand in favor of Brexit.

Open diamonds are flipped seats, which shows that nearly all of the flips from Labour to the Tories happened in majority Leave districts.

full chart here