1) It wasn't his daughter. His daughter got killed at the start of the game / infection outbreak by the army guy.
2) No, he wasn't right. Again, not his daughter, but a "delivery" that was supposed to cure the infection and save the world. He made the wrong choice and caused the infection to spread, countless people die, as well as the wars and fighting of the desperate trying to survive.
3) Of course, if I had developed a bond with a kid over the course of the journey, I can't say I would've done the right thing either, but that's the point. 1 kids life vs the world's (granted the world in real life can go to fuck) is a horrible decision, but it had to be done.
4) Her death was also going to be completely painless. She was going to be put under anaesthetic, and they were gonna operate from there. So she wouldn't have had a clue that either she was dead or that she potentionally saved the world. If his daughter was actually still alive, do you think he wouldn't save her?
5) The only way Druckmann can say Joel was right, was for allowing them to make a sequel and constant remasters / ports. No cure = more games.
Mind if I retort?
First point, it wasn't his daughter. True, however he was put in charge of the minor and was responsible for her safety. Her last responsible adult left him in charge of her and it was accepted by all parties involved. His responsibilities were nearly identical to a parent legally by Today's law. In fact, in the same situation today, he would be held responsible for neglect if he didn't care for her. More importantly, there is no law during TLOU2's time, so him being her parent or not isn't legally anything. So to your first point, there is no law here but even if there was, he is responsible for her.
Point two, the needs of the many outweigh the needs of the few or the one. This is a philosophy major's argument and also the same argument for the red winds of communism. Let me ask you this. Would you let your pet freeze to save two random animals? Is that the right choice? If you think the answer is yes, then you are no coward, you are showing the courage of your convictions. However, I would argue that letting your pet die to save 2 animals is actually the morally wrong choice. An alternate example might be where a doctor gets paid the same thing as a janitor because ""From each according to his ability, to each according to his needs"." It's a childish argument designed for a black and white world.
Third point isn't super a point, so I'll let that slide.
Point four, death being painless does not make it less of a murder.
Point five is a conspiracy theory that even if true isn't relevant here.
So here's my problem with it. Ellie has a life. She should decide. Not you or someone else. The needs of the many outweigh the needs of the few or the one is a perfect argument if you are sacrificing yourself. It becomes the argument of a monster when you are sacrificing others. All of the evil people in human history committed their atrocities under the guise of "the needs of the many outweigh the needs of the few or the one" and many of them, much like you, probably believed they were making the hard and right choices for mankind. However, with or without law, each of us has the right to life. When we take life from others without permission in order to prolong our own, we have become beasts.
Remember Ellie wasn't captured by "society" she was captured by a violent paramilitary organization. Her death didn't guarantee a cure. She wasn't being offered a choice or dignity or a last meal or even a chance to say goodbye. She was being mercilessly slaughtered for the good of some perceived medical breakthrough by the bad guys. Your moral compass seems right in line with Light Yagami from death note.
I'm gonna ask you this. Was Light Yagami right or was L right? I'm thinking you're a Light guy.