Last 50 years from the bureau of labor statistics.
Series Id: LNS11300000
Seasonally Adjusted
Series title: (Seas) Labor Force Participation Rate
Labor force status: Civilian labor force participation rate
Type of data: Percent or rate
Age: 16 years and over
From:
https://data.bls.gov/pdq/SurveyOutputServlet
I kind of get your point, and do not fully disagree, but there were multiple recessions during the last 50 years without the same or similar trends as the past 10 years. There is a clear, albeit slight, trend back upwards, though. Economics are not my thing, so I will gladly admit ignorance at the intracacies, but I am good and trend data.