Long story short. Beginning in the seventies the earning power of working class people world wide hasn't increased very much. At the same time manufacturing productivity has increased very much. In the long term there will be a LOT of people who won't be able to find a paying job.

Getting payed to play video games might be a good source of income for those people. It's not the same for guaranteed basic income but the results might be much the same.

I was unaware until recently of how LARGE the gaming industry was. The article I read said that it was much larger than Hollyweird, the legacy news media, and all of professional sports COMBINED.

That would seem to be a fairly large customer base.