I think a lot of people do have sympathy with the older son in the Prodigal Son.
And actually if you read it, there's a lot more to it than the older son being pushed out by the younger one's return.
Firstly the younger son comes in penitence; he comes to say:
"Father, I have sinned against heaven and against you. I am no longer worthy to be called your son; make me like one of your hired servants."
He does not come expecting to take back his "rightful" place as son.
But also the Father doesn't say that the older son is thrown out. what he says is:
"My son," the father said, "you are always with me, and everything I have is yours.* *But we had to celebrate and be glad, because this brother of yours was dead and is alive again; he was lost and is found."
He (the Father) is celebrating, but he isn't saying the older son is wrong. He also says that all he has is the older brother's - which is significant because he's not going back on that the younger son took his share of the inheritance, so everything left does still belong to the older one. The father here is clear that he is delighted on a personal level but the older one is not in a worse position for the younger one's return.
The point is that God (represented by the father) forgives all those who truly repent. He doesn't just forgive them, he comes running to them as soon as he sees them.
But also telling the people listening (older brother) that they don't need to resent it when others (Gentiles) come to God as their inheritance is still secure.
However I think Harry looks more to the "Persistent Widow", although it's not justice he's after, it's what he wants for security. What he doesn't get is that he's already got a fair deal here so it's not the same.
Jesus said: “In a certain town there was a judge who neither feared God nor cared what people thought. And there was a widow in that town who kept coming to him with the plea, ‘Grant me justice against my adversary.’
- *“For some time he refused. But finally he said to himself, ‘Even though I don’t fear God or care what people think, yet because this widow keeps bothering me, I will see that she gets justice, so that she won’t eventually come and attack me!’”