This is always the argument that people bring up around this, and its woefully misrepresented. Biden signed a bill that 75% of the railroad unions agreed on. The bill was designed to be the bare minimum needed by the unions to continue their work. He stated after signing the bill that work still needed to be done, and that the fight for the unions for better wages and safety was not over, but he was signing this bill to prevent a total shut down of the economy that relies heavily on railroad infrastructure. Biden never said that the unions couldn’t continue to address the shortcomings of the system. He didn’t take away their rights to strike, or force them into compliance. He merely signed a bill (again, approved by the majority of the unions) to make sure that the railways stay open. If there is a continued failure of the railways, it’s not on him, it is because nothing has changed since then. There is still work to be done, it was only ever meant to be a stopgap to avoid a much larger crisis. If you think the writer’s strike and SAG-AFTRA was a big deal because movies couldn’t be made, imagine what would happen to the US if food supply lines were completely severed. Do you think the produce you get in the grocery store was all farmed within walking distance?