Has the "liberal ideology" (whatever that might mean) really been "rejected by the American people"? It's a bit hard to prove that point on the basis of the 2016 election, in which the Democratic candidate pulled in roughly 3 million more votes than her Republican rival.
I think the real lesson of the 2016 election is one to which few commentators seem to pay much attention: that our long and expensive system of choosing presidential candidates may be badly broken. 
How else can we explain the choice given us of two candidates who were in their own ways so deeply unpopular and distrusted?