I'm aware that many of these people couldn't pay, mostly for lamentable reasons outside of their control, but pretending nothing is wrong usually doesn't help a bad situation. Ignoring letters from the IRS doesn't make you not owe them taxes. Ignoring letters from your lender or their lawyer doesn't make you owe less money. You still owe the money and it costs you interest and time that you could use to negotiate a settlement or forbearance. Perhaps if you make your situation bad enough, it's easier to file for bankruptcy and start over, but I doubt that people are thinking that far.

In any case, it's a big stretch to call eviction "state violence". When they're even involved, the sheriff is mostly helping to enforce a private contract between the homeowner and their lender. The only conceivable alternative to this situation that still allows lending or private property to exist at all is for the police to not exist and everyone enforces their own contracts with their own violence.