He isn’t wrong.
Relevant
Several of the nation’s most powerful unions — including the AFL-CIO, American Federation of Teachers and the American Federation of State, County and Municipal Employees — officially endorsed Biden’s campaign on Friday. The first-of-its-kind joint endorsement among the unions, and the backdrop of hundreds of workers are part of a meticulously choreographed effort to show the support of labor behind what Biden himself calls the most pro-union president in history.
That may be true but didn’t he force the rail union to not strike right around the same time as the Palestine chemical spill?
He prevented the strike but also got the workers sick leave, which was one of the demands. More than 60% of U.S. unionized railroad workers now get sick leave.
More than 60% of U.S. unionized railroad workers at major railroads are now are covered by new sick leave agreements, a trade group said Monday.
…
Under the agreement effective Aug. 1, members will have up to seven paid days of sick leave. Five days will be considered paid sick days with the ability to convert two additional paid leave days for use as paid sick time.
Source: https://www.reuters.com/world/us/most-unionized-us-rail-workers-now-have-new-sick-leave-2023-06-05/
He’s also has a few years in his current presidency to do anything on that topic. So I’m not holding my breath here for anything from this guy.