I would say the test of public discourse should have limits. For example “North Korea is a great place to live and their regime is a vanguard against western imperialism” should not be treated as spam/trolling. I would argue the same for “genocide of russian speakers in Donbas”.

But I digress. You are right in that we must have the opportunity to state facts about Gaza even if it means damning outcomes for the Israeli polity (i.e. factual recognition that Israel is a genocidal settler colonialiat state).