Of course I agree with that, but currently I don't know who is a great striker who is worthy of replacing Benzema in the team when Real Madrid only has Joselu as a center forward. I know Real Madrid can bring in the players they are looking for, but so far they haven't done so and have chosen to withdraw from the transfer market.
I think it is a well known fact that Real Madrid did not spend heavily on a striker this summer because they are waiting to sign talisman Mbappe from PSG in the next summer transfer window. and this is why Joselu was signed as a stop gap. Instead, Madrid invested in their midfield options heavily; as they prepare to let go of Modric and Kroos in the coming season.