I don't know the source, so it's hard for me to comment but logically the problem as stated is plausible. i.e. legacy debt preventing the move to more efficient methods.

However, the conclusion i.e. therefore replace humans with humanoid robots does not. And then tacking on unionization is just a different subject altogether. You can staff some aspects of a factory with robots and the human's work shifts from production to maintenance. I've talked to automation people and robots can be very problematic and something "advanced" I would imagine much more so.

Although not recent, some referred to the robots as "Bob" blind one-arm builders. If very well calibrated and designed for a specific task, they can be ok, except when they go wrong. To think some "AI" driven general purpose robot is going to substantially replace human labor any time soon... I very seriously doubt that. Especially with that kook as leadership.