Huawei could pose a security threat but we already know by now that this is all about the economy and maintaining America's indisputed supremacy at all costs. After China, EU will be the next buggy man.
I can see that happening too with the amount of anti-EU rhetoric happening at the moment. I mean I'm not going to defend every piece of legislation the EU has passed but some of the comments levied against the EU from their US counterparts have been down right hypocritical.
The Chicken Tax has been around for decades but manufacturers do work around it.
We'd rather be fixing our own domestic problems like our crumbling infrastructure.
Trump campaigned on that.
Another viewpoint would be that this is based on self-interest.
The USA bombing Iraq because Hussein wanted to sell oil in another currency other than the USD and leaving the so called rest of the world with the humantarian crisis would be one counter example to the crutch-theory.
All of that combined, plus the growing need to address our own impoverished parts of the country is making a lot of people in the US think it's time to let Europe do it's own thing.
I totally understand wanting to focus on domestic problems but all too often campaigns based on that like to blame everyone but those who are responsible for domestic problems. We saw this with the UK's EU referendum (or "Brexit" as it's now known) where immigration was a key point. We saw this with a great many despots that come to power that blame other cultures corrupting their way of life. Even Hitler used the same rhetoric. And what good does it ever bring us? The US has had frequent shutdowns and regressions to universal health care and the growth of the UK's economy has slowed, cost of goods have gone up and jobs have and will be lost. We are all worse off for it!
Blaming everyone else for your own domestic problems wont help solve your domestic problems. In fact more often than not, you're only going to make them worse because you're just giving more power to those who actually cause those problems to begin with.
Trump campaigned on whatever the audience of the moment was cheering for. So far he's cut taxes on the ultra wealthy to the point we can't afford to fix infrastructure if we wanted to. Gutted the EPA, refused to impose bipartisan sanctions on Russia, and is talking about stealing land and hurricane relief money to build a wall that nobody wants besides that painted-on-hair racist Stephen Miller.
European auto makers have massive sales in the US as do Chinese manufacturers of all sorts of things.
Given the proclivity of China to use their IT skills for all sorts of shenanigans, noted in the news daily, it's beyond reasonable for Western nations to be concerned about having a government backed entity 'in between' all of the most important information in the country.
This is an issue that has to be worked out.
There is nothing conspirational. It's the new foreign policy.
China appers in the news b/c it's still the clumsy underdog. U.S has done the hacking and all the spy stuff for decades.