By definition, less government is always better

[stpioc]

One reason for this is that, whereas liberalism tries to apply the conclusions of science and academia to public policy, conservatism rejects those conclusions in favor of an a priori belief that more government is always wrong. One contributor, the not notably hinged commentator Glenn Beck, assails Trump for supporting the stimulus, the auto bailouts, and the bank bailouts — three measures that most economists believe helped prevent a much deeper recession. Movement conservatism rejects the conclusions of wide swaths of economists, social scientists, the entire field of climate science … of course it is liable to attract anti-intellectual candidates.

How Conservatism Created Donald Trump

For instance, the objection to climate science is either based on donor money or the belief that it necessitates public intervention, probably a combination of both. 

It isn't necessarily so popular with their own electorate though:

A second problem is that conservative doctrine is unpopular with the public as well. The majority may often support generalized anti-government sentiment, but it does not follow those generalities through to their specific implications. During George W. Bush’s first term, the proposition that Medicare ought to add prescription-drug coverage drew the support of 90 percent of the public. Conservatives did not believe this — some of them grudgingly accepted the Bush administration’s political need to cater to popular sentiment, while others castigated Bush as a traitor to conservatism for doing so.

How Conservatism Created Donald Trump