A very good question.
My educated guess is that the UK and Germany are the two largest pop / rock music markets in Europe, so by itself the UK is a (very) important market for bass gear.
However the online competition in the UK for Thomann was already strong - I can of think of Andertons, PMT, Gear4Music, DV247, RichTone, GuitarGuitar, Hot Rox, Bass Direct, Bass Gallery off the top of my head based in the UK (and I'm sure I've missed some off that list?), combined with other EU retailers e.g. Bax, Muziker, Kytary and it may well be that the introduction of the additional hassle of dealing with the UK will shave the margins sufficiently to make it difficult to compete with the UK based retailers.
Set against that - the retail mark-up on goods is pretty hefty.
But if the end result of all of this is more local music stores surviving, in my books that may not be a bad thing.
Sorry, just had to pick myself off the floor, given that we just agreed on something 😁
Yup, choice - good.
Monopolies - bad. Except where they are held by the public to be good (e.g. the NHS)
Sorted.