Absent WWII I expect that Eastern Europe will better off economically then it is OTL, not just because there would not be the destruction of the war, but also the economic stagnation of the 50 years of communism. Germany will resume a preeminent role in Central Europe sooner than OTL, as it recovers from the difficulties of the early 1920s and the depression and the bad feelings of WWI fade.
Antisemitism will continue to be acceptable. This is not just social antisemitism, but also quotas in universities and professional school, housing restrictions and so forth. In the USA the dejure antisemitism went away in the early 1960s, but here absent the Holocaust I expect it would last much longer and you would still see to this day social antisemitism with housing restrictions, at least unofficial quotas in education and business, steel (not glass) ceilings and the like. Absent WWII and the negative image of the Nazis as well as positive actions of African American servicemen, the state of race relations will be well behind OTL - Jim Crow will probably have gone away legally, but discrimination will be widespread.
As far as scientific/medical progress goes, I tend to believe that while some areas might progress more than OTL, by and large that won't be the case. A lot of progress was made because of the needs of WWII and the large amount of money thrown at this research (such as how to produce a lot of penicillin). No WWII means no cold war like OTL, and there is no doubt that competition with the USSR drove a lot of money to research with a lot of results that leaked to the civilian society - like the internet I am using now.
Having said all of the above - scientific/medical progress behind OTL, a much worse situation for ethnic and religious minorities in the USA and elsewhere, and other negatives no Hitler and no WWII (in Europe) means no Holocaust, millions upon millions of soldiers and civilians not killed or wounded, and massive destruction not spread from the UK to Moscow. IMHO if the UK, France, and Netherlands are not occupied/completely involved in fighting in Europe, the Japanese will probably have to decide that the deck is simply too stacked against them to do what they did OTL. Of course if there is a Pacific War, some of the research motivated by the OTL WWII will go forward, although some areas will not be there and the total will be smaller.
Antisemitism will continue to be acceptable. This is not just social antisemitism, but also quotas in universities and professional school, housing restrictions and so forth. In the USA the dejure antisemitism went away in the early 1960s, but here absent the Holocaust I expect it would last much longer and you would still see to this day social antisemitism with housing restrictions, at least unofficial quotas in education and business, steel (not glass) ceilings and the like. Absent WWII and the negative image of the Nazis as well as positive actions of African American servicemen, the state of race relations will be well behind OTL - Jim Crow will probably have gone away legally, but discrimination will be widespread.
As far as scientific/medical progress goes, I tend to believe that while some areas might progress more than OTL, by and large that won't be the case. A lot of progress was made because of the needs of WWII and the large amount of money thrown at this research (such as how to produce a lot of penicillin). No WWII means no cold war like OTL, and there is no doubt that competition with the USSR drove a lot of money to research with a lot of results that leaked to the civilian society - like the internet I am using now.
Having said all of the above - scientific/medical progress behind OTL, a much worse situation for ethnic and religious minorities in the USA and elsewhere, and other negatives no Hitler and no WWII (in Europe) means no Holocaust, millions upon millions of soldiers and civilians not killed or wounded, and massive destruction not spread from the UK to Moscow. IMHO if the UK, France, and Netherlands are not occupied/completely involved in fighting in Europe, the Japanese will probably have to decide that the deck is simply too stacked against them to do what they did OTL. Of course if there is a Pacific War, some of the research motivated by the OTL WWII will go forward, although some areas will not be there and the total will be smaller.