Maybe you could be a little more concrete. So you're not taking a United States point of view, which point of view are you taking? I'm not aware of any country which provides "necessities" such as food and housing as the general case. Not anywhere in the EU, not in "communist" countries and outside of famines, certainly not in the third world. Of course there are food stamps and social housing projects for poor and elderly people, but I'm referring to the general case. Where do you see any significant necessities being provided to the general populace by the state? Which necessities?

Of course you can define "subsidies of some degree" to prove your point, but that doesn't change the fact that most people in the world generally have to pay for things, even necessities. The major exception being basic education which seems to be universally provided for free.

I have no idea what sort of a burden paying $5 for browser software would place on poor people, but I am sure that society would find a way, much like it does with other necessities. I also disagree that a browser financed by advertising is less of a burden to the vulnerable. The advertising revenue comes from the products they purchase.