Would Trump have run the same campaign against Sanders? Absolutely not; IF the comparison is the campaign that Trump ran vs a hypothetical Sander’s campaign, then yes, Sanders would have won both the real contest, the electoral college, and the popular vote.
But again, Trump would have run a dramatically different campaign against Sanders and he would have wiped the board with him, possibly even flipping NY.
/// “. . . I think Sanders [could] have won. There are simply too many people invested in the gibsmedat culture of free stuff paid for by someone else.” ///
This is not implausible. But it should be TERRIFYING to all of us. Remember, Bolsheviks need only win ONE election. Like in Russia, it will be the LAST one.