I'm sure there are extreme cases but the vast majority of homeless are not much different than you and I. It does not need to be cheaper for every single homeless person individually, just cheaper on average. If you can rehabilitate even 20% that's a lot of savings and extra tax dollars to offset the costs (in addition to simply being the humane thing to do).
> 1) completely free units to destroy 2) 24/7 emergency care teams 3) completely free healthcare and mental healthcare 4) no sobriety expectations of any sort 5) no possibility to be kicked out of the program for any reason
> is going to be cheaper than putting them in jail or an institution? wow sounds almost too good to be true
Both of those are very expensive (about $100 a day for incarceration [1] and up to around $1000 a day for psychiatric treatment [2]) – and obviously a housing first program is not a drop-in replacement for them either as being homeless in itself is neither a crime nor a mental illness. I would also wager a destructive addict in their own home causes less property damage (on average) than one in temporary housing / on the streets. A 24/7 emergency care team is not a thing in assisted living facilities in Finland, and the housing provided by housing first programs is not at all limited to assisted living facilities – it is often just a completely regular rental apartment. And healthcare and mental healthcare are (nearly) free for anyone, not just "junkies". And the other two points are not even related to costs.
> housing first programs are often mixed into ordinary developments too. i bet families living near or adjacent to these units really enjoy living next to completely unstable addicts.
Actually I think it's beneficial if addicts are not lumped together in a stigmatized "housing first development". To maximize chances of rehabilitation and integration in society addicts need to be surrounded by well-functioning people, not other addicts. Otherwise you're just creating a slum where being an addict is normalized, and the problems continue to spread and get worse.
> housing first programs explicitly prioritize the least stable, most mentally ill addicts too.
Of course sufficient resources must exist to help everyone so the prioritization does not mean some people get no access to help they need. In Finland we use a broad definition of homelessness which includes people staying with relatives or friends. Providing housing to those groups helps prevent long-term homelessness. [3, p. 13-14]
> the cost of living in my city is so expensive that there are adults that work full time who have to have roommates to live at subsistence level. there are also housing first programs here that give junkies units for free to continue getting high in indefinitely. this is a ridiculous situation.
I agree the situation is ridiculous. An essential part of the housing first approach (that seems to be entirely neglected in the US) is to build enough affordable homes.
[1] https://www.federalregister.gov/documents/2019/11/19/2019-24...
[2] https://pubmed.ncbi.nlm.nih.gov/22588167/
[3] https://ysaatio.fi/wp-content/uploads/2018/01/A_Home_of_Your...