Oh, actually many have. In fact, many boycotted Kamala because she didn't speak out enough against the atrocities committed by the IDF in their genocide of the Palestinians.
AFTER WATCHING CIVILIAN GAZANS, INCLUDING WOMEN AND CHILDREN, CHEER THE DEAD BODIES OF AN ISRAELI MOTHER AND HER YOUNG SONS; I SAY BURN IT TO THE GROUND AND TILL SALT INTO THE SOIL