Well, considering that there was a comedy TV show about a Nazi prison camp in the 1960's, it seems unlikely that the people living in that era had any idea of the Holocaust as we think of it today. There would have been a lot of outrage over such a thing.

Some sources have said that the narrative we think of today -- 6,000,000 Jews gassed in Nazi camps -- is a narrative that did not really begin being pushed into the zeitgeist of Western culture until the 1970's. I think that is likely correct.

A few bullet points to consider:

• There was no Holocaust. Period. Anyone who is objective about it and willing to look into the issue from multiple sides and multiple sources, will have to conclude that it simply did not happen.
• There were no gas chambers. None. Not in any of the camps. This was proven in the 1980's by Fred Leucter, the world's expert on gas chambers at the time.
• Hitler did not like the Jews because of all the harm they had caused Germany from at least the time of WW1.
• His "Final Solution" was to get them out of Germany, and ideally out of Europe. Palestine was one possible destination, and he and the Zionist leadership worked together to make that happen. It was happening, but that effort stopped when the war broke out.
• Hitler's primary focus was not the Jews, however. His primary focus was stopping the spread of communism. It's just that most of the communists at that time were Jews.
• There were not 6,000,000 Jews available to Hitler to even kill, had he wanted to. There were only 500,000 living in Germany in 1933, and less than that by the time war broke out. Many more were living in Poland, but Poland was split between Germany and USSR. So, there was no possible way to kill 6,000,000 no matter how you look at it.
• There were more Jews living in the world after WW2 than before. Do the math.
• The Nuremberg Trials, though a good reminder in many ways, proved nothing. The Soviets ran it, and among the rules were: no evidence needed to be entered on the record in order to find someone guilty, and confession by torture was accepted as legitimate proof of guilt. Many were tortured or threatened. None of the claims (lampshades, soap, etc.) were ever proven. They were in fact proven to be false.
• The US/UK freed the prison camps in Germany. None of them had any atrocities. The USSR freed the prison camps in Poland, and they lied about what they found. The pictures and video were done some time after the fact, not when they actually freed them (we know this because it was January 1945, and the photos/film show no snow on the ground, which is impossible). The Russians later admitted they filmed it all at a different time and at a different location.
• The Soviets made up the stories of the gas chambers, and attempted to fake them, but their fakes were a joke.
• After the Berlin Wall fell, the Russians admitted that Stalin was the one who ordered the mass executions of the people found in the mass graves in Poland, that Churchill knowingly and falsely claimed was done by the Germans.
• Hitler invaded Poland because the Polish government, backed by the Soviets, were genociding the ethnic Germans. Hitler alerted the governments of the world to help put a stop to it, but everyone ignored him. So, he handled it himself.
• Hitler invaded France because a Polish Jew walked into a German embassy in Paris and murdered a German diplomat. The French government would not do anything about it, so Hitler took matters into his own hands.
• Hitler was not trying to take over the world, or even Europe. He was trying to stop communism.
• Hitler was not a perfect man by any means. He did become a dictator. He did abuse human rights when he put political prisoners into camps, who were mostly communists and people who were pushing the degredation of the German society (like we see with the LBGTQXYZ and pedophiles today). Many of those people happened to be Jews, so naturally they were mostly the ones put into the camps. After the war broke out (which Churchill pushed), they became prisoner of war camps.
• FDR did the exact same thing in the USA to Americans of Japanese ancestry.
• During the war, the Red Cross and others had access to the prison camps, and not one person in the world reported of any atrocities -- because they were not happening.
• After the war, the narrative that we know today did not exist. That's why TV shows in the 1950's and 1960's had nothing to do with atrocities, other than war in general, and the villainization of Hitler, as happens to all leaders on the losing side of wars.
• During the 1970's the Holocaust narrative started to be pushed into the consciousness of the Western world, but it was a lie.
• And here we are today.