Israel doesn't care about Gazans either. If they did, they wouldn't be bombing every hospital and refugee camp and preventing aid from coming in. Nor would they be preventing them from making a state and having self-rule at every opportunity. Gaza is already condemned when Israel decided to reduce it all to rubble and make public statements about reducing the population from millions to a few thousands. Hamas is just an excuse to raze and then take the land. Without Hamas, you get something like the government in the West Bank, which hasn't done anything to prevent Israel from taking more land, imprisoning and killing more Palestinians, and failed at every opportunity to get them their own state or a good quality of life, either, because they have no power against the US and Israel. It's the same state of affairs but slower. So no, Hamas isn't the cause of Gaza people suffering, it's Israel.