AIPAC is funded by Israel, Republicans, and Democrats, so you can't draw any strong conclusions about party affiliation from involvement in AIPAC alone. Further, AIPAC isn't the only, or even the biggest, donor to Biden and Harris, so claiming they're "bought and paid for" strains credulity.

MAGA isn't solely characterized by Zionism, and not all Zionists are MAGA, so going from "Zionism" to "MAGA" is an unsubstantiated leap.

Finally, receiving donations from a death cult does not make one part of a death cult. Morally reprehensible? Yes.