Israel could just kill all Gazans, if that's what you mean by steamroll. Israel has nuclear weapons. But Israel chooses not to do so because Israelis treat their 20% of their citizens who're Muslim as legal equals. Israel cares about people of all religions and ethnicities much more than extremist Muslims do. Hamas deliberately kills babies, and rapes and kills attendees at peace music festivals. Israel gives its Muslim citizens equal rights and so the populations of Muslims and Christians in Israel is increasing. Palestinians, however, do not treat Jews or Christians as equals, and so there are no Jews left in Gaza, and fewer than 1,000 Christians. Hamas forbids its people from traveling to avoid Israeli warnings to evacuate an area so Hamas can use its own people as human shields. Hamas uses resources to build weapons rather than water systems. Hamas does not care about people.