David Cameron had the integrity to actually give the British people a referendum on the EU after successive Tory governments had been promising to do so and had not been delivering on that promise for well over 20 years.
If only the ReMoaners had the integrity to abide by the will of the people and leave the EU.
No, it was not integrity that made him fulfill his promise after putting it off several times following accession to the prime ministership; it was public pressure. He, as a “liberal conservative” (his own words, hence a Red Tory who rammed “gay marriage” down his country’s throat), would have been satisfied with finding means to put it off indefinitely; he even campaigned for a “remain” vote.