"Israel funded Hamas" is one of the most wrong-headed lies that is frequently repeated here.
If you actually look into the specific accusations of what Israel did to "fund Hamas," there are things that, before October 7th, humanitarians were calling on Israel to do.
What did they do? They allowed funds raised for Gaza outside of the region to enter the strip where they could be put to use by the ruling party of Gaza (Hamas). They allowed humanitarian shipments containing things like pipes into Gaza, where Hamas weaponized them into missile casings. The issued work visas for more Gazans to enter Israel and earn a living, which Hamas used for reconnaissance. They forcibly shut down all Israeli settlements in Gaza, and withdrew any Israeli troops. Hamas took advantage of the power vacuum.
When challenged on these backwards claims, pro Hamas reply guys will pull out a single 20-year old quote from someone without any policymaking authority. Or they'll claim that the method used for the Gaza fundraising money to enter Gaza somehow proves the point.