Marxist-Leninists are not friends of Palestine, not unless they acknowledge Stalin himself have had a hand in creating Israel. https://www.rbth.com/history/327040-ussr-and-israel-from-friends-to-foes
One can hope for a moneyless, classless, and stateless world without supporting the atrocities that came as a result of others who used such an ideology to gain power and abused it. I don't think you can rightly associate support for a person with support for an ideology.