No. We need less people. In general, there is no shortage of workers, there is just inefficiency, bad working conditions and bad pay.
The fairytale of “worker shortage” was made up by employers that want to get away with paying nothing for work and treating their workers like shit.
If you want to shrink a population, you have to do it slowly while adapting the system to it. In a few years, with the boomer generation slowly retiring, Europe would be fucked without immigration. Too many retired people with not enough young people to care for them and uphold the economy at the same time. You can’t fix the resulting hole in manpower by only increasing efficiency. In Germany we are talking about a lack of 400k people per year.