Why is it known as the UK variant of coronavirus?

Now I know what it must have been like for the residents of Wuhan when Donald Trump first described Covid-19 as the Wuhan or China virus. This new fast-spreading version of Covid-19 that has got everyone around the world so worried is officially defined as the UK variant. I guess it's easy shorthand for blaming the Brits but can it really be possible, let alone plausible, that this particular strain turned up in the UK and nowhere else on the planet and that anyone who gets it in another country only does so because he or she was in the UK or has a relative or friend who has just returned from the UK? Why on earth should a variant start here in the UK? Does the UK have certain environmental ingredients which makes it more likely that a different version of Covid-19 will develop and move about? With all due respect to the Wuhanese, we don't have wild animal food markets in the UK. There is no reason that I have seen which might suggest that the UK is the only place where a variant of this nature will breed. The only thing which justified the term, the UK variant, is that it was first discovered in this country by very clever scientists who were on the look-out for any breakaway versions of Covid-19. I have absolutely no doubt that this variant has been sitting around ready to burst forth in every country in the world which has the original virus. That's what viruses do. They're clever. Once the first strain has erupted, the devilish virus starts to develop ways of outsmarting those humans who think they know how to combat the disease. Nature can be evil when it wants to. Anyway, wasn't this newish variant found in South Africa as well or was that another version of its own? But you don't hear about the South African variant. It's all about the UK variant. I guess we have to put up with it. But the Wuhanese, and Chinese in general are probably thankful that the focus has now switched away from their part of the world to little old England, now separated politically as well as geographically from the rest of Europe.