First off who will produce the products to just give away? I have yet to see someone who loves their work so much they will do it for free!
Who will make the vehicles? Work in warehouses? Make computers/electronics? Who will build the houses? Especially when everybody expects to get it for free anyway? In summer time when it is nice outside who would work in a hot sweaty factory, warehouse, machine shop or power plant when they could be out enjoying the great weather with friends and family?
Fact is they wouldn't. Nobody would choose to work when they can be home. They do it because they get paid money and money is needed to pay the bills and provide for ones family.
Not to mention this guy thinks everyone is as nice and giving as he is. Some people are psychopaths and straight up thugs who can care nothing about you and would rather beat you down for just looking at them.
In fact who would work as the police? Who would endanger their lives as with their families to just go out and protect and serve others for just shits and giggles? Then who would work as a prison guard among all the disease and malcontents who would kill them just because their job is to keep them behind bars and in confinement. I know/knew several prison guards and can tell you none of them would do that job if they didn't get paid.
Also who would run the distribution centers this guy talks of? Why should he be stuck behind a desk/counter aka job when he can be out with everybody else on a nice day at the beach or sports event?
Civilization would crumble because no one will produce the food, box and ship the food, receive the food, prepare and cook the food, and serve and sell the food.
No one would have any place to live and drive because the parts wouldn't be made or cut down, shipped and received, and put together or built. Also everyone will want a house and top of the line car and house in this over populated world do we have enough land and fairytales workers that will be willing to work over 14 hours a day seven days a week trying to keep up with demand all over the world?