The very definition of a truism is that it speaks for the whole of society. Therefore there is nothing arrogant at all about saying as much.More to the point of my posts being labelled 'sneering contempt' and 'absolute bollocks' by a person who appears to be able to state truisms that speak for the whole of society. I'd say that is pretty arrogant in my book.
I can't find the bit where he accuses you of "sneering contempt" so can't comment, but last time I checked I thought "absolute bollocks" was simply a forceful way of disagreeing. It hardly means he's being arrogant, IMO. Maybe you just don't like being out thought?
Edit: ah yes I see it now. You basically accused ALL 11m Tory voters of only voting for themselves. Sorry, I agree with Buzzer. I'm sure some do only vote for themselves, but I certainly read your post as sneering contempt towards all Tory voters too.