Consumer routers have had issues, but often because "manufacturers don’t issue patches or they don’t bother to notify people when their router is end of life and no longer receiving security updates,” EFF’s @Thorin told @newyorktimes.
https://www.nytimes.com/wirecutter/reviews/foreign-made-wi-fi-routers-ban/
The FCC Banned New Foreign-Made Wi-Fi Routers. Here’s What That Means.

Wi-Fi routers made outside the US are now banned. But you don’t need to toss yours out or buy a new one.

Wirecutter: Reviews for the Real World
@eff :Well, ironically the US is the country I least trust for supply chain security right now since the DHS and FBI can lean on tech companies to share customer data. What will really happen is that lots of routers will stop getting security updates because there is no reason to support existing products to maintain a market that is no longer available for new products. Then security will actually take a shit. Meanwhile, with control of hardware and most cloud servuces, the US can impose its own surveillance and censorship system to outdo China. I'm in the market for pidgens.