Most of them didn't lack for anything. Each one is imminently more qualified than Trump. If we had a disagreement with a former candidate on a policy proposal we registered it. Therein lies the difference. Trump's approach and that of his supporters was visceral. It was not based in policy or principle. And if my characterization of Trump and his supporters has worn thin then I don't know what to say. It's the basis for his success.
After all, we are talking about an electorate that voted for Obama twice. So I wouldn't be so quick to say, "Me and the people of the United States..."
Now you're catching on. The GOP offers up McLunatic and Milquetoast Mitt. Just about all recent GOP candidates have been as mundane, emotionless and boring as Al Gore. Bush, Rubio, Walker, Cruz, et al all lack what Trump displays; passion, enthusiasm, excitement and energy. He actually looks like he wants the job. We know of Trumps warts and shortcomings, it's daily fodder. WE also know that he can get things done and that he is a patriot. There are many conservatives that support Trump, including military brass, LEOs, religious leaders and politicians. We aren't all clueless dupes.