Of course, it's not only reprehensible for Abbas to say such things, it's also utterly counterproductive to his cause because it suggests to millions of people around the world that the struggle of the Palestinian people for an end to the occupation and a state of their own is not a legitimate cause, but a smokescreen for hatred and prejudice.
"President Abbas has shown a commitment to non-violence and a two-state solution".
The U.N.'s special coordinator for the Middle East peace process, Nickolay Mladenov, said in a statement that "leaders have an obligation to confront anti-Semitism everywhere and always, not perpetuate the conspiracy theories that fuel it".
"This is why attempts to rewrite, downplay or deny it are unsafe", he said.
The fundamentals of peace can not be built on views of the Holocaust which fly in the face of history.
Abbas has been accused of anti-Semitism in the past, including in 2016 following a speech to the European Parliament.
Britain's Middle-East minister Alistair Burt said any attempt to justify or explain away any element of the Holocaust is unacceptable.
A spokesperson for the French foreign ministry said France "deplores" Abbas' speech, calling it "false, unfortunate and uncalled for". "Anti-Semitism doesn't create a dialogue". This requires the utmost responsibility in the public expressions of each of the parties.
"Even in this gloomy climate, however, Mr. Abbas's vile speech was a new low".
The German-Palestinian Society, or DPG, in a statement Tuesday said it "dissociates itself clearly and unequivocally" from the remarks by Abbas. Israel has slammed the organization for passing resolutions seen as political, downplaying Jewish connection to Jerusalem and referring to contested sites as "Palestinian heritage sites".
France shares the emotions roused by these remarks by President Abbas.
Abbas also repeated claims he made in January that Israel was a "colonial" project encouraged by Europeans who wanted to be rid of their Jewish populations.
Abbas further claimed that Nazi leader Adolf Hitler facilitated the immigration of Jews to Israel by reaching a deal with the Anglo-Palestine Bank under which Jews who moved to the British Mandate of Palestine could transfer all their assets there.