“Daemon died fighting for his Queen!”
To me, he did exactly the opposite of fighting for her at the end.
Here is what Daemon knew:
He could stand a chance to fight Aemond and survive if he did it with Nettles, leaving him the chance (at the very least) to then fight the rest of the greens.
Rhaenyra then sent for Nettles head, and he would not stand for that so he let her escape. That’s when he decided to fight Aemond, though he stood no chance to survive (let’s not kid ourselves by saying that Daemon was just that powerful. He only killed Aemond by killing himself).
At this point the news of Ulf and Hugh being turncloaks have reached him, and for all he knew Silverwing and Vermithor were approaching Kings Landing, with Tessarion. Making a much larger threat than Vhagar, a threat that would be responded with Seasmoke, Syrax and Tyraxes at most, and he would not think Tyraxes would join and maybe even doubt Syrax.
Dreamfyre also resided in the pit at that point, and while Helaena was no fighter, and for all purposes mad at this point, that made the greens dragon advantage enermous.
Syrax (unlikely to fight)
Caraxes (if Daemon were to join)
We obviously know that Hugh and Ulf would turn again, and then + Addam and Daeron would die with Silverwing being the only survivor.
But he didn’t. He only knew that they had turned and were fighting with the greens, and he still decided to send Nettles away knowing he stood no chance of living.
To me, he did not die for Rhaenyra. He died because he gave Nettles the chance to flee. While knowing that Rhaenyra was pretty much mad, and was going to lose.
All in all, their decision to remove Nettles is entirely idiotic in my opinion.
You deserved so much better than that.