For sure, I'm not at all trying to portray Israel as blameless here, because they are not.
I think the blockade does have some basic level of merit, at least in principle (it can't really be doubted that Hamas does import weapons and materials with Iranian backing), but it's critical that those kinds of controls only go as far as they're needed and no further. However, the Israeli government has never really cared about not going to far, so Palestinians have no real reason to trust that they're being treated in good faith, violence comes to feel like the only real option, and onwards the mess rolls along.
Along with Palestinians needing to accept that Israel is going to exist in some capacity and that it will not accept any deal that doesn't ensure its security, Israelis need to accept that if they don't take every step towards keeping peaceful paths available and fruitful, then people will turn to violent ones. Israel can of course easily win a conflict of violence, but it doesn't have to be this way