I agree with the filth and the miseries caused through what you see as government. Only, I would call it "non government". It's not because the political elite is corrupt that one doesn't need a government, but precisely because it is corrupt that one needs one.

It is also the case that a government is needed, when there isn't actually one in office. Instead of working as it should, words and texts are being produced. Instead of leaving physical public structures such as water, fire and soil management to the experts in the field and on the water, one pretends that there is no physical matter. Instead of protecting people and material things - through a sensible budgetary effort - terms and buzzwords are protected. This is not real work, it is the simulation of activity. This is "non-government", but not "government".

If the world was not so interconnected and countries not so dependent on each other, nation states would not exist and a national government would not be necessary because people would not be travelling by plane and mass transport.

But since they do, and since goods are transported by air and water and railways in masses, and since goods reach the world market as a result, you can't just say that you don't need a national government. Someone will want to discuss the issue of importing and exporting large quantities of gas, oil and other commodities with you and will want to contractually negotiate the quantities for your nation, as well as international construction projects like pipelines. You'd want these nations to make a safe deal which lasts decades, and not until the next non-governor comes along.

If you leave it all to the ‘free market’, no one will stop an oligarch or a conglomerate from sinking their shark teeth into your country.
They tried it with Russia when the Soviet Union ended. Putin prevented that. Trump tries the same, but has a much harder job and maybe he lacks the skills and intelligence.

Unless you have no substitutes which gives the single individual the same quality and quantity of energy and electricity you need, you are dependent on having gas, oil and other essentials coming from foreign countries. In a modern world, you cannot isolate yourself, you need partners on the international level. Just for the sake of the big ones I mentioned, and I would like to add uranium as well, since atomic power plants need them to run.

Unless, you want go back and de-industrialize, do not drive a car, do not heat, do not cool and start living as a farmer or something less, you need a strong government which is able to reign and is not so paranoid to see enemies all over the world. But which is not so naive to see friends everywhere.