Genocide is the modern term used.
I don't know a good joke for this one, so the answer is genocide. :\
There was no objection, but the word genocide was not created till 1943 ...
Genocide
The term fogotten holocaust is sometimes applied to any genocide that the writer or speakers believes is ignored.
a masacare genocide.
Yes, the word "Genocide" should be capitalized as it refers to a specific term that describes a deliberate and systematic extermination of a national, racial, political, or cultural group.
The Holocaust, in particular the Nazi "Final Solution."
Genocide
Genocide is a term that means killing all members of a racial group. It could be applied to Jews as well as to other people.
The words holocaust (in the modern sense) and genocide hardly existed at the time. (It seems that the word genocide was first used in 1944). The recent practice of some legislatures declaring certain events to be genocide was completely unknown till much later.
Since the mid-1940s genocide has been the English term. It means killing a whole people, race, ethnic group.
The modern scientific term for "purebred" is homozygous.