Realmadrid is a club that loves to invest in their future and they always select good youngsters to replace departing older talents and its been favorable to them over the years and that's why they've been so successful, for instance they replaced Casemiro with Camavinga, Marcelo with Mendy and even bale and Cr7 with the likes of Vinicius Junior and Rodrygo and I believe they'll soon get a better youngsters that would replace Benzema, which they're currently working on.
Yes, it is true that Real Madrid always prioritizes bringing young players to the club to regenerate young players with strong talent such as old players who have left the club and it seems like you have to add young players who are brought in to try to develop Arda Guler's talent but unfortunately these young players is actually very talented and has a good future but when it was rumored that he would make his debut he suffered another injury and of course Ancelotti was a little disappointed with this news while he couldn't wait to see how strong his talent was and maybe we just have to wait for another striker player who can replace Benzema like Haaland or Kylian Mbappe.