Obviously each to their own, I don’t intend to tell you that you’re wrong for not liking it, but I do think a lot of people misinterpreted that part. Love was never meant to be actual driving power in the direct sense of a law of physics; it was characters rationalising things they couldn’t understand or couldn’t see a way out of. Brand was desperately trying to find any reason to go to Edmunds’ planet when the rational choice based on the available information was to go elsewhere. Cooper used it to explain why he was needed - the future humans couldn’t figure out how to effectively communicate with the present humans, but they figured that someone with a really strong personal drive to do so could figure it out if given the tools, and they were right. Cooper knew how to send a message that his daughter would understand even though the tools he had available gave him very little ability to do so because he and his daughter understood each other well.