Looking around the internet, I see sources ranging from 20-60% of divorces being caused at least partly by financial issues, and that makes sense, to be poor is to be stressed, and to be unemployed is to be stressed, and to be stressed is to fight, but that doesn't provide strong evidence for a "they are locking them down to force them to work so I can live in luxury" narrative.

I really struggle with believing it as being a widespread phenomena.

It's weird. It's like telling random strangers, who you know nothing about, that they might get cancer. Is it true? Sure, cancer happens, sometimes. But it's weird to remind people about it unsolicited.