Some of those weapons are used by the Iron Dome system provide protection for Israeli civilians when Hamas fires rockets at them. Do you want Israeli civilians to die from Hamas rockets?
Now the best defense for both Israelis and Palestinians would be to get everyone to agree to a ceasefire. Which is exactly what Biden is doing. But until that happens we know what Hamas will do if Israel doesn’t have adequate defenses. We saw this on October 7.
The goal of the “stop supplying Israel with weapons” narrative is to allow Hamas to do what they want, which is genocide on the Israeli people. Is that what you want?