Sorry for the long title this is a what if scenario had the profumo scandal hadn't occurred.
What if the Conservatives carried on running the country in the 1960s and we helped the Americans in the Vietnam war, however we lose the war and it humiliates Britain on the world stage even further, worst than the Suez canal crisis in 1957, the Tories are ousted in 1974 finally and Labour gets in (lead by Wilson or maybe Tony Benn) and takes Britain, a socialist Britain into the late 1970s and well into the 1980s
British and American relations are low and the two drift apart, The IRA troubles end with the 70s as a good Friday agreement equivalent is reached in 1975.
How would this Britain look by the 1990s and 2000s?