This is credible, if you think about it.
Beside the long track record of Archie Bunker stereotyping, Trump has been quite insulated from the lives of common people - as would many Billionaires, for practical and security reasons. There's also a pretty clear pattern he doesn't have a great deal of empathy for things that are not inside his mind or immediate agenda.
Example: Quick reaction tweets about the train derailment in Seattle proving the importance of his infrastructure initiative... and then later a "thoughts and prayers" tweet for the victims and their families.