

I’m talking about the average consumer, who in average doesn’t really care about things like this around here. It’s quite common to favor domestic products over imports, specially at the grocery store, but even if you tried it would be pretty difficult to fill in your cart with just US products around here as there’s just not too many products available.
Cars around here tend to be either Japanese, Korean or European. Tools are mostly from China (or somewhere in east) or European (you still can see DeWalt tools here and there, I have few too but they’ve been around for years). With all kinds of appliances it’s the same picture.
What I’m trying to say that even if you don’t give a damn about US, your Joe Average still have very few US originating things around their houses. Farmers used to have quite a lot of John Deere around but that has changed too over the last few years and while you obviously still see the green ones around they’re lot less common. Should all US originated products vanish from the stores overnight very few people would even notice.
Industrial automation should be strictly firewalled (or even airgapped) anyways, no matter the manufacturer. Giving any kind of unmonitored remote access to anyone outside the company actually running the thing is asking for trouble.
If the power plant owner decides to trust Huawei (or any other entity) that’s on them. Obviously the grid management should also make rules about this stuff, but in general if you leave your SCADA/whatever system open to the internet you’re pretty much asking for someone to break your stuff. Maybe it’s the Chinese government, maybe it’s the neighbours kid, maybe it’s some IT student in Latvia, who knows.
And securing your stuff inside a private VLAN or whatever is not difficult nor expensive. Not in total euros spent and specially not compared to the damages and fines you’d need to pay after something goes wrong enough.