Seems to me that Martin prefers to depict many of his characters with the ambiguity and uncertainty that many humans have with respect to our decision making. Daemon's moral compass hews to whatever values he holds as important, and given his pragmatism (dreams didn't make us kings, dragons did) his decision making, like all of us, depends upon the situation. Although, his frustration in general (both with his brother and likely with Rhaenyra) regarding the reluctance for going on the offensive is perhaps due to his lack of awareness of Aegon the Conqueror's dream. Alicent has her own guidestar, as did the recently deceased Vaemond Valeryon.
I lean into supporting Team Black mostly due to Otto Hightower (Greens) and his manipulation. Perhaps he is correct to want his grandson to be king given the tradition throughout the kingdom of male progeny being the preferred ruler. But he would not have had that grandson were it not for his maneuvering, and perhaps the entire scheme does not play out according to what he thinks it will. Yet, there are likeable enough qualities about some of them, just as there are decisions and actions from Team Black that are not admirable.
In Daemon's defense, he does seem loyal to his House up to a point, and will defend it with his life. He behaves differently in his role than his parallel character, Aemond, and I find that fascinating.
Edit: @billfromlaketravis was of similar mind I see.