You don’t know what you’re talking about, sorry. After doing well above expectations with Tenerife, he had Valencia play fabulous and exciting football at the start of the millenium, winning the league for the first time in over thirty years - and twice - breaking up the double dynasty of RM/Barca, and this was in the period when the Spanish league first overtook Italian Serie A and was way beyond PL in depth of quality. He also took Valencia to the CL final. He was one of the best coaches around at the time, and extremely far from ‘always shit’.
He took over Liverpool, which were in their toxicity, entitlement and skewed expectation phase like we are now, but he lifted them clearly from the previous coaches and won the CL with them at a time when nothing looked like that should be happening.
No managers almost are brilliant for more than five to ten years or at different clubs, the exceptions are rare heroes indeed, but Benitez was brilliant for about a decade. The ‘fachts’ interview blinded many United fans of posteriority for what he was about, but that’s really just kid’s stuff. Rapha Benitez was not in any manner or way ‘always shit’.