It says a lot more than that!
It is important to understand the techniques the Right uses to deceive, in this case telling just enough truth to deceive and then shutting up.
Baby Boomers Are Retiring - Business Insider
How can retiring baby boomers be the primary driver of the drop in labor force participation if the participation rate for those 55 years of age and over has been mostly
increasing in recent years as the total labor force participation rate has fallen?

Business Insider/Matthew Boesler (data from St. Louis Fed)
Chart 3.
It's important to remember that, at 39.8%, the participation rate for those 55 years of age and over is still a massive 41.1 percentage points lower than the prime working age (25-54) participation rate, which currently stands at 80.9% (chart 3). Millions of Americans have been transitioning from the first bucket (25-54) to the second one (55+) over the past several years as the baby boom generation comes of retirement age.

Business Insider/Matthew Boesler (data from St. Louis Fed)
Chart 4.
Since 2007, the prime working age population has fallen by 1.556 million, or 1.2%, whereas the 55-and-over population has risen by 14.063 million, a 20.2% increase (chart 4). Some quick arithmetic shows the effect this has had on overall labor force participation:
- The average prime working age LFPR since 2007 is 82.0%, and the average 55-and-over LFPR since 2007 is 40.1%
- The size of the 55-and-over population has increased by 15.619 million relative to that of the prime working age population since 2007
- 15.619 million multiplied by the difference between the two participation rates (82.0% - 40.1%) implies that this simple demographic shift alone has left only 6.544 million workers at the end of 2013 where there were 15.619 million at the end of 2007
- Subtract that 6.544 million still in the labor force from the 15.619 million who made the shift from the first bucket to the second bucket and you get 9.075 million people 55 years of age or over who have left the labor force over the past six years