Hamas is a subsection of Palestinian. Some Palestinians are Hamas - therefore to 'free Palestine' (at this present moment) would be to endorse the strategies employed by Hamas and their approach to how the problem should be solved. Erardication of the Jewish people. This is where the problem is. Not all of Palestine is Hamas, but all of Hamas is Palestinian - and until that Gordian knot can be resolved we are at an impasse.

I think you have simplified the last eighty years in the spirit of a simplistic oppressor/oppressed narrative - and indeed simplified the few thousand before that. There's a very long, but very comprehensive history to be found here. https://medium.com/migration-issues/who-has-claim-3-000-years-of-religion-in-the-land-between-23f220a697f7