Should note that Thatcher only managed to get elected, in part because the Labor Party basically spent most of the 70s running the nation into the ground, combined with the various major unions getting so fucking drunk on power they held that they turned England into a literal hell on Earth, to the point that people couldn't bury their dead and other major "fuck you normies" shit that culminated in the whole "Winter of Discontent" shitshow.
And even then, Thatcher's first term was a disaster helped only by the fact that Labor literally imploded the second they were cast out of power due to the communist infiltrators Militant staging an internal coup. against the leadership of Labor on all fronts internally to gain control. from bottom to the top.* Which led to Labor splitting in two and undergoing massive internal civil war that left them unable to fight Thatcher and even then, Thatcher had to start shit in the Falkland Islands just to get a war victory reset in the media to make people rally around her and forget her failures and give her the political capital needed to wipe out the unions.
*In a documentary series about Labor in the 80s, they had several high ranking Labor folks describe Militant as literal parasites as far as the fact that none of the commies had jobs or lives outside being commies, meaning that they had all the time in the world to stage their coup, starting from the local level of government and making their way up to the national level, whereas actual NORMAL WORKING CLASS AND MIDDLE CLASS PEOPLE had to work actual fucking 9 to 5 jobs and had lives and couldn't spend their days and nights plotting political party takeovers.