It absolutely is a failing of the individual. It can still be a "disease" at the same time.
A few of them may be addicts and we extrapolate it to the whole group.
Oh please, most of them are. Drug addiction is the leading cause of prolonged homelessness, followed by mental illness.
Often times the unhoused become addicts after they experience homelessness,
And often times their addiction caused them to be homeless. I'm not sure what value there is in trying to prove exceptions when the general trends are clear as day.
Society has failed them.
I used to work at a homeless shelter when I was doing some community service work and I can tell you first hand most of them don't want help. They don't care. They just want drugs. They get offered treatment opportunities all the time but they refuse because they can't get loaded.
So you genuinely think twitter is worth 0$? If so, you are dumb. corporate debt means nothing when the main value you have is intangible, nonliquidatable assets. Twitter is still worth a lot of money, even with it's debt and revenue decline.