https://tradingeconomics.com/united-states/labor-force-participation-rate
Click on the 10 yr chart. workforce participation dropped 4 points under Obama. 66% to 62.7%.
It's rising under trump. Meaning that trump is getting low unemployment, and more people off the bench.
Essentially, you neglect to mention that 12 million people quit looking for work under Obama.
Trump's managed to get 3 million of them, back working.