It seems to me that this is a further example of the "divide and rule" method of distracting people's attention away from the real issues surrounding poverty and inequality.
The emphasis in the article is on the treatment of the white working classes, and yet an article in the Washington Post suggests that the black working classes are at even more of a disadvantage:
"Concentrated poverty is getting worse because poor people — especially poor African Americans — are increasingly left behind. And a number of forces drive this pattern, including systemic discrimination, policies that have historically concentrated public housing and modern zoning laws that keep the poor out of wealthier communities."
The Winegard article says "quite possibly he [Trump] is bigoted". To my mind, the following DT quotes indicate he is most certainly bigoted:
"An extremely credible source has called my office and told me that Barack Obama's birth certificate is a fraud".
"When Mexico sends its people, they are not sending the best ... they're sending people that have lots of problems .... they're bringing drugs, they're bringing crime, they're rapists ..."
"You are disgusting" (addressed to a lawyer who had asked the court for a medical break in order that she might pump breast milk).
The article speaks favourably of DT's support for "traditional marriage" and "family values", which is often code for disagreement with gay marriage, family planning, etc.
The article suggests that working class white culture is continually being denigrated, that their jobs are being taken by Mexican workers, and that their living standards are declining. Again, it is setting up one group of disadvantaged people to despise another group of disadvantaged people, rather than recognising that unfettered capitalism thrives on such divisions.
The writers go on to say that all these issues are the result of a "political elite" who promote "political correctness".
Given that DT is a billionaire who inherited a great deal of wealth, some people might be of the view that he is in a pretty privileged position himself and this has enabled him to stand for office - an option that isn't open to the average person in the USA - and certainly not to poor working class white - or black - citizens.
The article quotes DT as saying "No one's looking out for the white guy any more" and goes on to mention his dislike of the Black Lives Matter campaign. All lives matter, he says. Yes, they do, but the Black Lives Matter campaign has arisen because a hugely disproportionate number of black people, including children, have been killed by the police in very questionable circumstances.
It's always much easier to whip up fear and encourage division and hatred when times are hard. That is all Trump is doing, and I think he's ghastly.