The chips act was more about national security then employment. Semiconductor manufacturing doesn't require much labor and isn't a mass employer. Even in Taiwan it only employs around 300,000 or 2% of people. Even if the chips act somehow brought all 300,000 of those jobs over here, which it wont, it would still be a drop in the bucket in the u.s.

The ira was better but was still limited in it's effect. Most Americans don't see the effect it had or don't think they're effected. You need universal programs that are easy to see the effects: Free school lunch, Medicare for all, raising the minimum wage, subsidized child care, student loan forgiveness etc.

Also I don't believe Americans actually want to work in manufacturing. They really just want the stability, dignity and pay that union manufacturing jobs provided. If they got those from unionizing a Walmart or Starbucks then they'd probably be happier as those jobs are safer and less monotonous. This combined with the fact everything would get more expensive if it were manufactured here, no one could afford an iPhone built in america, makes me think the onshoring movement is a dead end politically and we should instead be focused on unionization.