Might be a fun fact but it is not correct. Article 52 of the fourth convention is not related to hospitals. Article 52 of the 1st additional protocol is related to hospitals and it does not mean what you are saying it does. Geneva conventions do not define war crimes, that definition is given in the ICC Rome statutes.
Fair enough. The ICC Rome Statute specifically refers to the Geneva Conventions of 12 August 1949. But per the ICC Rome statute on war crimes, Article 8, Section 2, Subsection (b), Clause (ix), the following is a war crime: “Intentionally directing attacks against buildings dedicated to religion, education, art, science or charitable purposes, historic monuments, hospitals and places where the sick and wounded are collected,provided they are not military objectives;”
Still the collateral damage needs to be proportional and adequate measures need to be taken to minimise civillian casualties.
So at least they would need to be able to evacuate. But Israel intentionally destroyed ambulances, cut water, electricity, fuel and communications, so it is impossible to evacuate the hospital. Israel did everything to make sure the civillian casualties will be high and that is nothing but a war crime and heinous murder.
https://www.newarab.com/news/israel-gives-hospitals-gaza-hours-evacuate
According to the Hamas propaganda Israel literally gave a one month head start on that demand when they did not control the area around the hospital.
Just stating that they are a military objective (as IDF does) does not make it so.
What about finding tunnels, weapons, bombs and having terrorists hiding and firing from within the hospital compound? Is that enough or does Hamas need to put up a sign reading “military objective” at the entrance?