So you think there is some innate "je ne sais quoi" in the British public and politicians that would make a system that works badly elsewhere work much better in the UK? PR would result in lots of little parties, squabbling for power, each able to make or break a coalition, just like everywhere else. And make it very difficult, if not impossible, to apply decisive policies because just one or two small parties, with maybe 3 or 4 percent of the vote, would block whatever does not suit their supporters. You mention British pragmatism; but surely this is what has produced the FPTP system. Which is brutal, decisive, and very pragmatic.