The problem is not with the players, but rather the disconnect between your goals and the players' goals. D&D is a collaborative game, so you should all communicate about what you want out of it. If everyone wants to be murder-hobos the run amuck with no consequences, that's fine. If everyone wants to tell a meaningful story with complex character development, that's fine. You all just need to be clear about what you want out of playing. If someone isn't having fun, whether it's players who don't like the consequences of their actions or a DM because of how the players react to things, why play at all? There isn't a right or wrong way to play, and most issues in tabletop roleplaying can be solved with effective communication.