I don't understand the rap is shit/not real music argument

So I was in a vc on Discord with some ppl and we started talking about music and we started arguing they were both rock fans and basically all their points were "they don't play instruments", "they don't say shit about anything besides fucking bitches and shit" and "it takes no talent" like I don't understand what goes through people's heads but I understand everyone is entitled to their own opinion but godamnn