In theory. In practice even with a valid US passport in hand you won't pass KYC without proof of address. To get an address costs either money to get a place or lots of time spent with social workers, assuming they're even accessible, to get the legally valid evidence of a homeless shelter as your address.

Additionally, when I was living in poverty at least I often was living in legally precarious housing with no mail access and landlords that didn't want any "on-the-record" evidence and thus no proof of my address. KYC is a big expensive burden on the poor that blocks banking access.

Tell that to people who spent years unbanked, cashing their paychecks at a van that would pull into the factory parking lot on payday, like me 20 years ago.