What caused the opioid crisis? Doctors prescribing opioids for no good reason. Why wasn't it happening in EU? Because in EU doctors are paid and controlled by the taxpayers not by the industry. And because in EU doctors have free public education so they aren't 100 000 dollars in debt when they graduate.
Ok but opioids is one way people get addicted/homeless. Another is that they get sick and don't have coverage. Again - in a sane country they get public healthcare so they don't have to default and lose everything - so they have no reason to get addicted.
How about mental sickness? Early childhood is very important. Most EU countries have 6 months or more of mandatory paid maternity leave. On top of 20+ days of paid vacations yearly and unlimited paid health leave. Mandated by the state for all employees. If you don't take them - your company gets fined. HR people force you to take the days off.
Do you see how that would prevent a lot of mental illness/addiction/homelessness?
You can go through most problems in the US, and ultimately they are caused by the insane labour laws, healthcare, or education system.
And the funniest part is - you make all these sacrifices by not having a civilized welfare state, and you still end up paying more for healthcare (yes, including the taxes) and living shorter than people in the EU. You get addictions, homelessness, crime, shorter life spans, AND you pay more :)