I'm sure they're got plans to not work, since honoring labor is
equivalent to honoring evil.

The first big Labor Day in the United States was observed on September
5, 1882, by the Central Labor Union of New York. It became a federal
holiday in 1894, when, following the deaths of a number of workers at
the hands of the U.S. military and U.S. Marshals during the Pullman
Strike, President Grover Cleveland reconciled with the labor movement.
Fearing further conflict, legislation making Labor Day a national
holiday was rushed through Congress unanimously and signed into law a
mere six days after the end of the strike. The September date
originally chosen by the CLU of New York and observed by many of the
nation's trade unions for the past several years was selected rather
than the more widespread International Workers' Day because Cleveland
was concerned that observance of the latter would stir up negative
emotions linked to the Haymarket Affair, which it had been observed to
commemorate. All U.S. states, the District of Columbia, and the
territories have made it a statutory holiday.