According to articles, during the pandemic, the auto manufacturers reduced orders of the chips. The chips manufacturers turned the productions to other products. Little did they know, the auto industry came back quick and in high demand. But then chips had been moved to other products with no extra available. Understand that chips are high tech item and require billion, billions investment to add manufacturing lines to ramp up production. Who are willing to put down this billions? Plus the US impost higher tax on import from China, the interest to spend more to increase productions will be low. Not to mention the US ourself won't be able to produce more chips for the similar reason.