There's a distinction to draw between creating more militant opposition to Israel's occupation and creating more Hamas. A category error I think a lot of people make when discussing this is to presume Hamas is a normal representation of armed resistance. At least since 2017, and arguably before, it has been a deeply abnormal armed resistance movement.

You might have reasons to believe that Israel's persecution of Hamas is going to generate a new generation of Hamas, but reasonable people might disagree and say that to the extent Israel is creating new militants, they're likely to look more like Fatah's armed wing than Hamas.