That's true, of course to find a classical economist we'd have to go back to the 18th and 19th centuries.
If you look at the polls, there are some Republican and conservative and libertarian economists, just not that many of them.
There are classical economists in this day and age (usually, we call them "neoclassical" economists). Mainstream microecon has a classical/neoclassical basis, but macro usually has more of that Keynesian policy flavor.
Who wants to try a bottle of merc's "Extroversion Olive Oil?"