I agree with you that such acts are deplorable in any way and I said in my post I am not condoning those acts. However, the U.N. states that genocide "means any of the following acts committed with intent too destroy, in whole or in part, a national, ethnical, racial, religious group . . . " and then goes on to delineate the many ways this can be done. (The International Criminal Court adopted a similar definition in 1998.) I believe the definition was created because it was in direct response to the outright slaughtering of the Jewish population in WWII based on ethnical and religious considerations. Unfortunately, it does not include disabled people as a separate group.