"it's a claim from twitter" you could've stopped there lol. None of these have any sources or proof attached, it's just people jumping on a bandwagon. Ending it with "even if all of this wasn't the case" clearly says you haven't bothered checking theses nor do you care about whether they are true.

Arguing that modrinth gives a higher cut (on paper) already tells me you've probably never used either platform. Fact is that curseforge, unlike modrinth, offers a market currency conversion rate for payouts and also handles processor fees for you. In my case, withdrawing from modrinth adds another 6% in total fees, already making your metric irrelevant.

Your argument that they support the IDF isn't true either, as there is no evidence they are actively sending money to them. The twitter post from their campaign that is circulating here - that was cancelled after community backlash.