True, most of the tasks can be done with off-the-shelf hardware already. But single task robotics is already a solved problem, what the humanoid robots are about is multi-task, aimed at replacing the tasks that still require human hands / legs / eyes / brains / etc.

But I think most of those can be replaced by existing robotics as well anyway. I mean take car manufacturing, over time more and more humans were replaced by robots, and nowadays the newest car factories are mostly automated (see lights-out manufacturing: https://en.wikipedia.org/wiki/Lights_out_(manufacturing)). Interestingly a Japanese robot factory has been lights-out since 2001, where they can run for 30 days on end without any lights, humans, heating or cooling.