While that is very true on issues related to foreign affairs and international relations, I'm not so sure the case you make is valid. Libertarians support a return to small(er) government and have opposed ObamaCare or any form of nationalized health care.
OTOH. Sadly, too many libertarians are minarchists and in some cases, outright anarchists. Not something mainstream conservatives and traditionalists find appealing.
"... there are libertarians who are almost over at the point of wanting no government at all or anarchy. ~ Ronald Reagan, Reason Magazine Interview, 1975
Seeing the mess the Republicans and Democrats have made of things, why aren't you?