"Egypt blockades Gaza too — why is only Israel blamed?"
Their strongest version
Egypt has kept Rafah heavily restricted for long periods, destroyed smuggling tunnels, and shares responsibility for Gaza's isolation.
The response
Partly true, and worth conceding: Egypt's closures have compounded Gazan suffering and deserve criticism — Palestinians give it plenty. But the symmetry is false at the level of facts: Rafah is a passenger crossing, not a cargo artery — the goods lifeline (Kerem Shalom), the airspace, the sea, the fishing limits, the population registry, and the approval of what may enter are controlled by Israel, and Egypt's Rafah policy itself operates under a coordination regime with Israel that Israel has enforced, including by seizing and holding the Rafah crossing's Gaza side since 2024. An occupying power's obligations under law attach to the power with effective control; a neighbor's bad policy doesn't transfer them. Both can be criticized. Only one is legally responsible for the population it controls.