My God. No. The holocaust has been co-opted by Jews to mean “6 million”. Just like they co-opted “Semitic” to mean Jewish. Until maybe 10 years ago, everyone understood the holocaust to mean the systematic execution of 11-12 million people.
President Jimmy Carter, issuing the executive order that would establish the US Holocaust Memorial Museum, referred to the “11 million victims of the Holocaust.”
And: https://www.amazon.com/Holocaust-Forgotten-Million-Non-Jewish-Victims-ebook/dp/B007VU444A/ref=nodl_
From NBC News: Of those who have heard of the Holocaust, many are fuzzy about the facts of a systematic campaign of murder that killed 12 million people, 6 million of them Jews.