I always thought politics was about what ordinary people think and want
Yes, but people, ordinary or not, want different things. Politics has to find a way of respecting the democratic vote whilst still allowing those who didn't win to feel they have some say and some influence over their lives. Precisely because we have a FPTP system it's important that politicians do respect that, otherwise its a case of a large number of people effectively being told to "suck it up" - in the phrase of another Mumsnetter poster. This pretty well happened during the Blair years when, rightly or wrongly, a lot of people did feel they were being ignored. The same is likely to happen in the coming Maytocracy.
In the absence of a PR system happening any time soon, there are sensible measures the government could take. What about returning education to some form of local control - not to the extent where LAs rather than schools appointed teachers but certainly on issues such as the return of selection. Or what about the govt supporting the proposal from Guy Verhofstadt to allow people to retain EU citizenship on a voluntary basis?
I used to be a supporter of FPTP but either I've always been wrong or circumstances have changed enough that I really think it is no longer viable. I am actually quite worried about the next few years. My daughter already sees her future abroad. Of course there is nothing wrong with young people broadening their horizons but this is becoming very widespread among them.
By the way, as a Librarian, I've frequently been told over the years that libraries should give "people what they want". Trouble is I've also been told that libraries are too noisy/too quiet/not welcoming to children/have too many noisy childrens activities/not enough books/too many books/try too hard to be trendy/not trendy enough/too many computers/not enough computers. It's not easy to give people what they want!