That is mostly, and demonstrably, true. Each year the President sets quotas for asylum seekers. It has usually ranged in the 70-90,000s.. under Trump it has been more than halved. It's not that asylum seekers don't arrive - it's that the resources to process them are not allocated. In this instance, Trump is actually following the standard Republican playbook: ignore the issue, and make it worse. The list is long - climate change, environment, income inequality, racial disparity, Palestine, South and central American poverty. Trump has merely expanded the list and followed the worst course possible.