This is binary thinking. On the margin, a small basic income (not enough to live on) would still have a lot of small effects. For example, a couple might find it more affordable to get by without both people working, if they could almost afford it before. Or, people might be more willing to take a lower income job like teaching. It also makes rural areas with a lower cost of living somewhat more desirable, if you can find a job.

I very much doubt you could afford a snowmobile on such income, you would still need supplemental income to be able to afford most of those things you're talkng about.

So if anything maybe some people who now work full time, would work part time. And those who currently work but can barely scrape by would actually be able to live decently which IMO would have a tremendous effect on people's productivity.