I wonder how many of the commentards who bash the US would feel if they lived under the same laws and repressive politics that exist in China today.
China does not have a good reputation about human rights, etc. However please do not try to use that as a reason for accepting that the USA is behaving badly towards Huawei. The two are not flip sides of the same coin.
* Companies in all countries are subject to national laws that compel them to obey their spooks and not admit it. How often this happens we can only guess at. Some times, like Cisco, we hear about it.
* China does have a bad reputation for not respecting copyright, patents, etc. The USA only implemented/ratified the Berne Convention in 1989 - 100 years after it was first accepted.
* The USA is engaging in a trade war with China, Huawei is targeted, partly, to try to preserve USA dominance in telecommunications. The reason that the USA loudly shouts 'national security' is that this is one of the few get outs from World Trade Organisation rules.
As ever in wars: truth is the first casualty.