Most will not listen or care. They expect everything to be under control and if anything goes wrong, they trust the social care safety net. And if everything fails, they'll probably just blame you and other crazy people for doing it.

Shipping giant Maersk warns of sharp slowdown in global trade as profit plunge

Unfortunately, these sort of warnings are like handing a drowning man a sticky note with the word "oxygen" on it -- too little, too late. 

I tried to warn the people I knew to prepare for at least year of unemployment; to sell their over-priced homes while they could; to downsize their lifestyles while they had a choice; and to buy Bitcoin while it's cheap. Nobody listened, because I was the only person they'd ever heard who didn't repeat the government propaganda about the economy. I suspect that showing them similar warnings from major businesses won't convince them either.

Will they listen when they are on the verge of homelessness? Or would that be like a handing them sticky note with the word "prosperity" on it?