You are leaving out vocabulary to make your point. It's easier for the same person that originally spent the money to respond the money to a different output on Bitcoin if RBF is enabled. What we are arguing about is not the spender. It's an adversary being able to attack the chain and double spend or reorg that we are arguing about. You can't fuck with A tx in bitcoin if RBF is not enabled or if it is and you're not the private key holder. The fact is Bitcoin is Far more secure than Monero. You want to desperately argue like it's not.