A common misconception : the present government was voted for by a minority of the electorate (
PR would address this).
Election 2015 - BBC News
Excluding the membership of the electorate who, for various reasons, could not be bothered to participate in our democracy (and therefore don't count), the May 2015 vote was slightly over 50% right of centre.
Meaning that although it is not perfect
PR, we got what we voted for with FPTP: a sensible, generally right of centre government, compared to the lunacy of Milibland/Corbychev!
That's the system we have and it's the worst in the world...apart from all the others.