When you don't agree everyone is just making stuff up. Literally you're operating under the assumption people aren't actively looking for something better. That's just a joke of an assumption. You must be in high corporate world with little contact to the pee ons who make your pizza, cut your lawn, and cut your hair. We can't even keep college basketball players happy, but people who have kids to feed and put through school are just content.You're just making stuff up honestly.
Employers not finding workers is because people aren't looking. People aren't looking because they either have a job or are content where they are. People are content where they are because employers have have to raise wages in the competitive environment.
That's not a supply side argument. People who own companies didn't increase wages to employees because of their personal 199A deduction. Wages are increasing more today than they did after the TCJA passed because employment is strong.