Well I disagree.

I don't think the Holocaust took away the word "holocaust" and stripped it off from it's meaning, and from being able to be used to describe other events. I also don't think that was the intent behind the choice.

So much so that I've capitalized the Holocaust.

If it's the right choice or not to name it, I trust the institutions that studied this event.

I also don't think it takes away from the crimes against humanity and genocide of other cultures, some from colonialism, others from racial and ethnic hate.

There's still genocide and colonialism happening to this day, for example at the hands of Russia we have the current genocide in Ukraine and attempt to colonize it. Or what's happening in Gaza.

Maybe it's a cultural difference, but the word "genocide" to describe these crimes strikes me as a very loaded and meaningful word, and accurate word - the Holocaust was a genocide, it carries everything that the Holocaust, Holodomor, native American, Chechens, Armenian genocide, and many other cultures suffered.

Also genocide not only has a definition as a word, but also has a specific legal definition.

While holocaust has its own definition which I don't think it applies to all genocides and crimes against humanity.