He isn't referring to Muslims or Hamas. Listen to the speech yourself. I wasn't able to find a written transcript, but it's only 20 minutes
https://www.worldjewishcongress.org/en/videos/holocaust-legacy/wjc-president-ronald-s-lauder-address-at-the-80th-anniversary-of-the-liberation-of-auschwitz
The entire speech is about the rise of anti-semitism world wide. He says that explicitly again and again. He's Jewish, and his speech is entirely centred on Jews and their recent experiences, and his fear that another Holocaust against the Jews is imminently possible. That is an entirely appropriate subject for Holocaust Remembrance day.
Only someone completely obsessed with Muslims - to the complete exclusion of Jewish experience - would interpret that speech as being about Hamas or Muslims.
He talks about the rise in anti-semitusm world-wide: students being harrased, Jews being fired, Jewish children having to hide that they're Jewish, hate on social media, the hate marches in the world capitals. He obviously mentions the October 7th atrocities. He frames it as anti-semtism, where innocent children and young people at a festival were murdered simply for being born Jewish. As they were during the Holocaust.
The only thing you could say at a stretch is about Muslims is that people shouting 'Global Intifada' and 'Death to Israel' aren't only targeting Jews, but actually mean 'Death to Western civilisation'. But that's about Islamist terrorist-supporters, not Muslims generally.
He mentions them (just once) as part of a repeated theme: that we should all be worried about the rise in anti-semitism, not only Jews. He reminds of how many non-Jews also lost their lives in WW2. And surely attacking all Western countries is what 'global' Intifada means. We've had terrrorist atrocities here too. He's drawing the parallel, to say that non-Jews shouldn't ignore anti-semitism.
In his next sentence, he suggests that social media is to blame in the rise of these anti-semitic ideas in young people worldwide, and that's what we need to address. That we (non-Jews) all have a responsibility to educate our young people.
It was an incredibly hard-hitting speech. He says that the conditions of anti-semitism worldwide is similar to how they were in the '30s and that the Holocaust against the Jews could be repeated imminently. That's why the audience looked uncomfortable: because it's a hard, uncomfortable message. I wanted him to stop saying these things to the Auschwitz survivors: old people in their 90s. Stop making them afraid. But at the end he said that he had to do his very best to sound the warning.