This is a really horrible policy and I personally know a fair few people and families that are going to have their lives upended by this.

On the other hand I've always wondered if most of America's competitive advantage at driving tech innovation hasn't simply been through capturing the ROI of other more social minded countries investing in public education. It could be a massive long term benefit to Europe and Asia especially if they get to keep the talent they created, and more globally distributed innovation seems like it could have some benefits to global welfare.