Deaths during legitimate warfare operations do not count as massacres. Especially when Hamas continuously lies about deaths in Gaza, lies that you are spreading.

Look at this list of massacres. Oodles of oodles of massacres in Israel since 1967 https://en.wikipedia.org/wiki/List_of_massacres_in_Israel but only three in Palestinian territories since 1967, one of which was Palestinians massacring other Palestinians and beheading a baby (oh, have we seen that before? Yes, and you're defending them) https://en.wikipedia.org/wiki/List_of_massacres_in_the_Palestinian_territories