Actually, my impression from reading works from 150 years ago is that the classical English liberal economists like Smith, Ricardo or J S Mill were Malthusians. They were concerned with "the end state of capitalism" in which profits were low, wages stagnated and there was general misery. J S Mill saw a way our only through population control and universal education. Can the last politician to go out the revolving door please turn the lights off?
And I haven't read Mill, though I know I should, but I wholeheartedly agree with those two points. Now where are we going and what's with the handbasket?