It is not. Liverpool have American owners and they operate like this. If they did not sell Torres then would never get Suarez. If they did not sell Coutinho they would never get VVD and even Alisson. You underestimate Covid influence. We are in different situation unlike all the others.
Liverpool wanted Werner for discount.
Utd, City also had interest. Bayern before. Real spent 60m on Jovic last summer. Zidane still rates Benzema a lot it does not make sense to go for another striker. Same for Barcelona.