I don’t see how they aren’t both rotten at the core. They both spring from the same Abrahamic religion. They both cite extremely fallible and frequently inaccurate texts as scriptures. They both cherry-pick what they want from scripture and knowledge. Neither is better than the other. The only reason that Christianity isn’t just as violent as Islam today is because most of the Christian world is leashed by secularism, which the Islamic world rejected a thousand years ago.