There's a picture of a young Princess Elizabeth (later Queen Elizabeth) being taught by her uncle, the then King, how to make a NAZI salute.

At least the British upper classes actually liked NAZIsm, they only started having a problem with NAZIs when Hitler invaded Poland.

More broadly, the white supremacist ideas have always been appealing in Britain - even Churchill himself committed a Genocide in India years before he became PM and the Battle Of Britain. Certainly a continued love for such ideas would explain Britain's posture even since: unwaveringly supporting Pinochet in Chile, the Apartheid Regime in South Africa and right now the Zionist Genocide in Palestine.

At least for Britain their relation with NAZIs wasn't hate, it was mainly geopolitics and actual fear when Hitler blitzed through France and ended up on the other side of the Channel from Britain.

Don't get me started on the US: from the NAZI movements in the US to how long they kept selling to both sides (famously IBM supplied the computer systems used to manage the Holocaust), only turning against the Axis and entering the War after the Japanese bombed Pearl Harbor.

And then there's of course how Stalin actually had a pact with the NAZIs until Hitler broke it and invaded the USSR.