Real Madrid defense isn't very bad, you are too much saying this. I can agree if you state they are not strong enough, but claiming they are very bad, totally not true.
It depends on what to compare, but in general I agree that Real's defense remained at the proper level even after the departure of Varan and Ramos. By the way, it is interesting that after the departure of Ronaldo, Benzema's talent and strength were revealed in full force.
That you for this crucial observation. I keep telling people that Real Madrid defense is not as weak as they portray. Infact it is not weak. They only struggled sometimes when the season began, and I think they are fine now.
Even when it was Marcelo, Varane, Ramos and Cavaja which was indeed a strong defense, Real Madrid never relied much on their defense.
Their strength always has been the attack and how much goals they were able to get for the club.
Exactly the mentality of Liverpool.