Baby Boomers are retiring. Boomers are the largest working generation for a long while. Gen-X is the smallest of all groups and there aren't enough of them to fill up the positions. Millennials haven't been upto speed to fill the positions Gen-X left open. Gen-Z is just entering the labor force.

There's a huge investment push to rebuild a lot of places, institutions, manufactures in the U.S to secure the supply chain. Those require lots of workers.

There're just a shortage of labor everywhere.