I tend to doubt such a large minority group of blue-collar, hardworking individuals, even if they were justifiably angry at being neglected by their government for decades, would be naturally drawn to and select to support an individual who inherited $500 million and filed for bankruptcy within a decade, had never previously displayed any concern for their welfare and was generally considered a prodigious blowhard, liar and conman.
I think it's much more likely that this conman and his cohorts identified and targeted this group as ripe for exploitation, manipulation and recruitment as a viable voting base, in other words an easy mark. They hatched a scheme to pander to this group's existing anger at being neglected by their government, xenophobia, slow wage growth, the exportation of their jobs and the browning of their country along with their in spite of it all patriotism.
I think the majority of this group still honestly believes they selected him as their spokesman and advocate, still not realizing it was the master conman and inveterate liar and manipulator that selected them for recruitment.
Tim