I guess my earlier comment was too long, so let me provide a shorter version: this action actively harms anyone attempting to design, prototype, and manufacture electronic devices in the US. There isn't a single component in the projects I'm currently working on which isn't impacted by this. My cost of goods just went up by 25% across the board today in an effort to help "protect" American businesses.
I don't feel like I've been protected by this.
The full list: https://ustr.gov/sites/default/files/enforcement/301Investig...
Earlier comment (now hidden) with a list pertinent to hardware developers: https://news.ycombinator.com/item?id=17320653