Trump's ban on Huawei will hurt the US as well

This article points out that Huawei spends $11 billion dollars on components from the US each year. That's a hefty amount of income that will be lost due to the ban. Apparently they've stock piled components for the short term and have developed their own operating systems, CPUs, and GPUs in case it lasts longer than supplies do. With all the downsides of this ban it's hard to imagine what good it will serve if any.