Partly, and to our detriment.
The other problem with listening to economists is that most people in positions of policy-making don’t read the “fine print” in these economic theories. All economists make simplifying assumptions when issuing forth with their pronouncements, which, when violated, render their theories partially or wholly wrong.
It doesn’t matter whether we’re talking about the Democrats/liberals peddling Keynes’ theories, or Republicans/conservatives peddling Friedman’s theories. Both economists made assumptions underlying their theories as well as had complicating caveats. Both parties blithely ignore these assumptions and caveats, and peddle the part that sounds appealing to them.