What government can do is limited by the constitution. Generally speaking, unless these companies have done something unlawful there is no ground for banning their products. Is it established that they have broken US laws?

Ok 20-day old China stan account.

Posting like this will get you banned here, regardless of how wrong another account is or you feel it is.

If you'd please review https://news.ycombinator.com/newsguidelines.html and stick to the rules when posting here, we'd appreciate it.

Have you read the US constitution? It is very short, easily reeadable in an hour. So if your comment is sincere, you would cite the specific clause of the constitution that you are worried is being violated. There is no such clause.

Not publicly, because they won't step up and answer questions, in public.

> Generally speaking, unless these companies have done something unlawful there is no ground for banning their products.

I don't think the right to sell goods is in the Constitution. What is in the constitution is an explicit grant to power to Congress to "To regulate Commerce with foreign Nations"

It will be if they sell their banned products

> Article I, Section 8

> The Congress shall have Power [...]

> To regulate Commerce with foreign Nations