"It is the proper objective of government to... — TopHatProductions115
A. do whatever its constituent population wants it to do
B. do whatever it can get away with
C. do whatever theorists think it should do
All three kinds of government exist and operate. Many of us live in countries which are best described by "A". Generally speaking, the government of Canada and Denmark are doing what the constituent populations want it to do. Neither country has been able to get away with very much. Just not trying, I suppose. Try harder. Same with Andorra. Quite a few people live in countries where B obtains: The government of North Korea (or pick your favorite example) is doing pretty much whatever it can get away with. NK is by no means the only country which fits "B". The government of the former Soviet Union was a "C" -- more or less directed by theorists who were at times altogether mistaken. China too, but they have been more dynamic.
Countries can, of course, overlap categories. The United States, Australia, and Great Britain have, for instance, served the wishes of it's constituent populations and also done whatever they could get away with. Theory is less important in these three countries, except that Capitalism is generally the presiding doctrine.
"GOVERNMENT" is a huge topic, of course, but it is also a quite manageable symbol. Some people want "government off their backs". This means repealing volumes of regulations, requirements, entitlements, onerous taxes, and so forth that get in the way of (in my humble opinion) unimpeded greed. For other people, GOVERNMENT is the shining city on the hill. Generally people who think government is a shining city on the hill are not in accord with the "off our backs" people. Pretty much diametrically opposed.
Many capitalists are "off our backs" enthusiasts, except when onerous government regulation happens to work in their favor. Exxon, for instance, might get behind air pollution regulation, because they would rather see all of their competition under the same burden as themselves.
Any leader in a field would rather have the whole field regulated, whether it needs it or not, than be the only firm regulated for past egregious malfeasance.
Do governments rule only be the consent of the people?
Theoretically. The National Socialists seized power in Germany without the mandate of overwhelming majorities. Once power was seized, the apparatus of repression, propaganda, and war swung into action pretty quickly, and the German people had no opportunity to quibble about Nazi state, let alone openly criticize it. Open criticism resulted in severe beatings, imprisonment and torture, execution, or all three.
I'm not sure whether the Soviet Union suffered a withdrawal of consent by the governed, or whether the pillars of society were finally just not sufficient to hold up the weight of incompetent management.
The United States is effectively a 1 party operation 93% of the time, and a vote to get rid of the government is a vote to switch from the Helvetica font to the Times New Roman font. No difference in outcome.