First and foremost, I am not British, but I've been living in the UK for over 13 years.
I think the word "hate" is too harsh to describe the public opinion here. A lot of people find it amusing and to a certain extent ridiculous how obsessed she is with cultivating an image rather being "real". She is perceived to be a bit full of herself, fake and a number of other things, but no need to dwell here. This has nothing to do with Britain not supporting the wonderful Spice Girls. VB loves attracting attention, in fact craves it. None of the other spice girls went so much out of their way to attract attention and the pblic stll like them. Of course being DB's wife, some of the attention came very naturally, but she intentionally multiplied it. There is a lot that can be discussed about her journey to where she is today after the Spice Girls split. The public loved her back then. Now these are general impressions re VB in Britain, which I agree with. One's opinions of VB, formed via watching her go through a very public journey from a spice girl to a sort of diva vs her more recent impressions on the international public may well be very different. Of course I cannot generalise, there are a lot of people in the UK who might disagree as well. Again just my personal views, no offense to VB fans.