The Holocaust^TM is defined as the industrial organised murder of 6 million jews. If you go below 6 million, it no longer meets the definition. Then anyone who doesn't buy into that number as such is a "denier".

We claim jewish communists exterminated tens of millions of Europeans before Hitler came to power, that your six million figure is Holodomor projection and that your race deserved to be rounded up and removed from Europe.

https://en.wikipedia.org/wiki/German_Revolution

I can't change the title now but @sguevar has a corrected and improved version:

Correction to the title: Nobody is denying jews died in WWII. We deny there was a holocaust. And according to numbers and statistics, more goys died during WWII than jews did... so... the whole narrative is fake.

"Once again I will be a prophet: should the international Jewry of finance succeed, both within and beyond Europe, in plunging mankind into yet another world war, then the result will not be a Bolshevization of the earth and the victory of Jewry, but the annihilation of the Jewish race in Europe."

https://i.imgtc.com/FgxsAAN.jpg

I have also made it quite plain that, if the nations of Europe are again to be regarded as mere shares to be bought and sold by these international conspirators in money and finance, then that race, Jewry, which is the real criminal of this murderous struggle, will be saddled with the responsibility.

https://i.imgtc.com/kD03xg8.png

Stalin's Jews. We mustn't forget that some of greatest murderers of modern times were Jewish.

https://i.imgtc.com/Ez4t7Cq.jpg

Ask a Holocaust whiner to prove six million died and watch them sperg the fuck out, the six million hoaxers claim 3,500 SS policemen shot 1,400,000 yids within two years for starters.

https://i.imgtc.com/LmDsDL0.jpg

"Not only do we know precisely what we want, we also know precisely what we do not want. The deceived nations of the Earth may still lack the knowledge they need, but we will bring it to them. How will the Jews stop that in the long run? They believe their power rests on sure foundations, but it stands on feet of clay. One hard blow and it will collapse, burying the creators of the misfortunes of the world in its ruins.

It will not cease before it has reached its goal. The truth cannot be stopped by lies or force. It will get through. The Jews will meet their Cannae by the end of this war. Not Europe, but rather they, will lose."

Source

The very fact that you can't question it without, at best, having your career and social life destroyed, and being imprisoned at worst, is one red flag. The other is having a general understanding of human nature, psychology, and history, and realizing this is just the expected exercising of an unbeatable "I win" switch from a cultural group that wants to get as much as they can for their own at the expense of others. You can post all the infographs and factoids one way or the other all day till you're blue in the face, but when you step back and take a look at the bigger picture with open eyes, knowledge of how human societies operate make it easy to see what's happening.

Jew answer: Yes, if you understand human nature and the Nazi ideological and propaganda campaign against the Jews for decades, then you can easily understand why they killed them

International Jewry is ready with its alibi. Just as during the great reckoning in Germany, they will attempt to look innocent and say that one needs a scapegoat, and they are it - but that will no longer help them, just as it did not help them during the National Socialist revolution, the proof of their historical guilt, in details large and small, is so plain that it can no longer be denied even with the most clever lies and hypocrisy.

Anyway it's like a rotten tooth. The more you wait to admit things don't add up in your narrative, the more you will suffer.