I'm wasting time even doing this, as I think you are being purposefully disingenuous, but I don't think there is another manager in the world who could have accomplished what he did under these circumstances. Of course it would have been great to win a few more trophies, but we came damn close to winning two more league trophies (finished twice second with 97 and 92 points respectively), and finished runners up twice in the CL and once in Europa. He returned Liverpool to consistent contention, while (successfully) challenging the idea that a season is a failure unless you finish first.
When he took over, Liverpool was pretty crap and he didn't have much to work with. I'm not going to link to his initial lineups, but they weren't with a lot of quality. While there was/is luck involved, his transfer dealings have been really incredible, and we are set up with a competitive squad moving forward. I'm damn happy I was able to go on a lot of journeys with him. Liverpool spent a decent bit of money, but not much in comparison to the other top clubs. He did all this while FSG was busy refurbishing the stadium. He did it during COVID.