The old party establishment system has so clotted both the Democrats and the Republicans with petty ideologies, libertarians (really corporate shills), phony Baptist political moralists on the Republican side.. feminists, homosexuals and radical (antihuman) environmentalists on the Democratic side.. that Trump comes in as a breath of fresh air.
He's a populist, activist, socially conservative, likely moderately progressive fiscally, an economic nationalist.. not beholden to intellectuals, ideologues and big campaign donors of any stripe. That would give him enormous flexibility and independence as President.
It is Bernie Sanders who has most clearly articulated the great calamity that Free Trade, Monetarism, Deregulation (especially of markets), and Privatization has inflicted on the American economy.
Unfortunately Sanders has been unable to separate himself from the cultural radicals of his own party.. and their programs of abortion, euthenasia, homosexuality, AGW.. all great lies, deeply injurious to American society and future.
You are left with Trump. An imperpect man, a populist and a promoter.. but the only truly independent voice in the election.
If he bought into some Bernie's of ideas bringing back a regime of tariffs, progressive taxation (especially for exhorbitant capital gains), Wall Street regulation (especially breaking up the big Wall Street Investment Banks), a federally planned and financed program of developing an integrated industrial economy, and investment in infrastructure.. he'd be a complete candidate.
But he's such a pragmatist and a realist, i'm not sure he won't bump into those programs in any event, if by necessity rather than intent.