First, that's not true. Despite the awfulness of Clinton as a candidate, she won more votes than any other candidate, and by a relatively big margin given that she lost the election.
Second, most of those who voted Republican did so as life-long Republican voters, not out of some protest against the political elite. See the more than 80 per cent evangelical white vote that went to Trump despite his lack of any clear religiosity. They voted for the candidate they thought would advance their agenda. They'd have voted Republican regardless of the candidate put up, quite possibly voted for Trump despite him being Trump rather than because of him, and were probably more enamoured by the traditionally conservative creationist loon he had as a running mate, who is himself very much a part of that elite.
So, let's be clear about who exactly it is that voted Trump as an expression of their rejection of the political elite, and as importantly, what the reasons for their anger at the elite were.