While I would like to believe this...it's not the case. Hillary won the popular vote, and barely lost the electoral college (most of the swing states were VERY close).
While Trump won fair and square, I wouldn't ever call it a "massive rejection".
I'd call it massive. Trump's electorial win is at 306. The Dems pushed their agenda too hard and lost a lot of voters over it. Most parents do not want to see a grown man in their daughter's restroom. Most white men and white women are against late term abortion. Most white men and women actually do believe that marriage is between a man and a woman. Most white men and women do not want to see the Hyde Act repealed forcing taxpayers to fund abortion. Most white men and women do not want the federal government forcing the Nuns to hand out contraceptaives against their religios views.
White men and white women, both the undereducated and the college educated overwhelmingly rejected the Democratic Party's stance on social issues. The Democrats ignored and lost the white working class vote.
The only concrete fact that you posted is Trump winning 306 electoral votes, and you cited that as being a "massive rejection" of Clinton. 306 is actually a pretty small win. Here are the last 10 presidential elections and how many electoral votes they received:
2016: 306 (Trump)
2012: 332 (Obama)
2008: 356 (Obama)
2004: 286 (Bush)
2000: 271 (Bush)
1996: 379 (Clinton)
1992: 370 (Clinton)
1988: 426 (Bush)
1984: 525 (Reagan)
1980: 480 (Reagan)
8th most out of 10 elections is not a "massive rejection" of the other person.
Would you say that the country "massively rejected" Obama's opponents?