Ehhh... it really depends on where the mall is located. Back home (podunk Rockford IL) malls are indeed dying. They are dilapidated and/or ghost towns. Ten years ago this was not the case.
Where I currently live (La Jolla CA) the opposite is true. Of course, the malls are filled with stores like Saks, Nordstrom, a Tesla show floor, etc. These places are packed. I know I'm not going to buy a $1200+ jacket online any time soon, so I go to the mall for high end stuff.