Same as, I ordered some bolt on farkles for a Husqvarna bike from the US, there is a perfectly good system for paying import duties and vat. Those that deal with U.K./ EU freight just need to get up to speed and quickly.When I had my Yankee RV I used to get loads of stuff from the states, couriers like UPS and DHL all delivered and managed the import duties and the VAT which I used to pay online to get delivery released all worked fine, I am sure it will settle down.
Or alternatively just bombard the postal system with mountains of tat in small packages just like the Chinese manufacturers do, seemingly without paying vat and tax.