"The concerns the voters have are real"

The "concerns" the voters have that made them pick Trump were planted in their heads in order to get them to vote for him. He demonised Muslims. He demonised Mexicans. He demonised the EU. He demonised Clinton, unjustly branding her a criminal. He demonised the establishment, and continues to do so even though he's a solid member of it himself. These, among others, are the "concerns" that he used to exploit the gullibility of a politically-uneducated electorate. The concerns he focused on were largely illusory. There are concerns, of course there are, there always are. But he was elected on the back of issues dishonestly presented to the electorate in a thoroughly bogus manner.