Yes along time ago people were able to meet the needs without conglomerates, but it was a much smaller scale. As the population grew, communities needed to work together to produce for a larger scale. With that systems fell into place to meet those needs on a larger scale. And those systems evolved into the companies we have today. These aren't dark cloaked villains twirling their mustaches and cackling at the world, it's just people living in the evolution of how trade and government has existed in the world. It's not perfect.
We live in the present though, and like it or not corporations and companies in general are in place to produce for masses larger than any one person can do.
My point is everything you have now that you love and enjoy be it TV, beer, food, games, whatever, comes from corporations. If you don't like it, give all your things to charity and go find an island. Start your own system of government and see if you can do better.
Keep in mind that the US was based on radicals that were sick of the existing governments and wanted to do things their own way. Taking ideas from the Roman Republic, they got together in Philadelphia and made their own system and said to hell with the world. They then fought to preserve that and make themselves an established country. I think that's pretty darn cool!
They found their own land and tried to do it better. Do you think you could do that? Or is it easier to just wish for destruction and death, which is what would come from a sudden collapse of the system. What side are you on?