I think Polanski was right to say the key problem now is Netanyahu and the fascist state of Israel.
If you think people need to be 100% purely committed to anti colonialism, or always says exactly the right thing, you will find the left lose their power.
We need to stand together with those that broadly share our aims to stop facism, and not fight amongst ourselves.
Also, suggest you write to Polanski as he has changed his views, as he's developed, as we all do.