Dirtboy made two groundless claims.
1. That the government was now taking MORE of a bite from American paychecks today.
2. That the entire middle-class in America was literally shrinking in size.
Then he admitted that he had no data at all for his middle class claim, and that he had personal data in his own paycheck that was **contrary** to his tax-bite claim.
Hence, "groundless"...
I'll get you data, Southack, if you insist on ignoring the stories in such liberal rags as the Wall Street Journal about the changes to the workplace over the last few years. But you're just making a fool of yourself in demanding that the obvious be proven to you.