Re: My advice
I'm not sure that would work. The EU's also got involved in this trade war and slapped (from memory) 25% duty on US telecomms gear.
Tech companies are also weighing in, with HPE, Cisco, Dell, and Juniper penning a letter to US Trade Rep Robert Lighthizer asking him to hold off on imposing additional tariffs on networking gear, arguing the penalties would only serve to hurt their business in the US.
And a lot of this kit wouldn't be in UK retail stores.. So how it would affect say, Dell, who I think sell much of their kit to consumers online via Ireland. So presumably if PCs or components are shipped from China to the EU by Dell Europe, they'd avoid EU-US tariffs unless they're being applied at the parent level. Same with Cisco and Juniper given they've got big European sales and distribution operations.
EU action may support EU competitors like Alcatel/Nokia/Siemens/Ericsson or whoever they're called this year, and also Huawei. But if the trade wars intensify and China puts export tariffs on tech components, it'll cause a lot of pain. Problem is US (and other nations) tech companies have become very reliant on China to source components and assemble product. Some of that may be easier to relocate than others, especially given the way China's also been swallowing up raw material supply chains.