I recall reading years back that Tory voters would happily vote Labour/Libdem if they want to punish the government, whereas Labour voters just abstain. If nothing else, it certainly highlights the tribal nature of UK politics.
Personally, I think almost everyone in the main political parties have got it badly wrong. In my line of work, I have often had to say the same thing
"The 50 year olds of today, are not the same as the 50 year olds 10 years ago."
Now this may sound trite - obvious or confusing even - but it contains a little truth that has cost some (including an company I used to work for) dear. The simplest way to illustrate this is to look at the "fact" that over 60s didn't use the internet. Which was probably quite true, 20 years ago. However, 20 years have passed, and all the then 40-year olds are now 60, and wearing the internet thin. If you based your marketing (as my company did) on that fact ...
This view can be quite a good driver - here's a blue-sky prediction. Accessibility - big fonts, easy to read screens, adjustments for problems associated with age - is going to really dominate future consumer tech. Because all you 30-something iPhone slingers are not going to stop just because you need varifocals.
Anyway, my point is politics is the same. I suspect my generation is not the same as the generation that came before. And it's the failure of politics - parties and people - to acknowledge this which has lead to the growing disillusionment felt generally across the UK.