Supporting designated terrorist organizations is not cool. Also Hamas just committed a bunch of grizzly murders of innocent civilians, not exactly resistance fighters at the moment. I am all for root causes and opposing the seemingly never ending Israeli occupation, and the settlements which are forcibly displacing Palestinians from their homes, but aligning one’s self with Hamas, especially at this time, is both morally wrong and also going to get you on watch lists, and probably rightly so.
To make the situation better you should have compassion and also strive towards compromise and not just pick your side and root for them to dominate the other - it doesn’t have to be zero sum.