Uhh, no. Trump is 100% about social interests. Banning Muslims immigrants (who are extremely high skilled on average) from the United States will really fucking hurt the economy, but that's Trump's main proposal. Why is it his main proposal? Because his supporters fucking hate brown people and Muslims scare them the most out of the all the brown people.
I've always taken the entire "America will win again" and "Make America Great again" as an economic argument - that your lives have gotten worse due to globalization and trade and etc etc, and that we're gonna take that all back.
I think there are a lot of liberal leaning folks who desperately want to believe that it's just about social interests and racism and sexism because it makes it easy to just paint him a straight up mustache twirling 100% bad guy, but I just watched him defend PP on a GOP debate stage, and he hasn't touched gay marriage or bringing back the ten commandments in a courthouse.
His primary arguments are motivated by economics - even his immigration argument. There are enough dog-whistles to grab the racists onto his side - but I think his primary argument that resonates with people (and is what the GOP establishment is getting side-swiped on) is the economic one. It also explains the weird Bernie / Trump overlap on voters (and why Bernie would trounce Trump specifically while not doing as well against the other GOP candidates). Heck, even the ban all high skilled muslims is an economic argument if you're affected by the H1-B visa influx that's been driving certain industry salaries downward / stagnating wage growth while increasing productivity (software development, for example). Get the racists and the economic argument in one shot.