Most crime is a direct result of poverty.
This is not correct. There is a correlation but no evidence of directionality. It could be that crime causes poverty, or that third correlates cause both. Sweden saw a massive rise in crime following the large migration of Middle Eastern refugees following the 2015 Syrian Refugee Crisis, and they decided to study it. Translation below:
https://bra.se/rapporter/arkiv/2023-03-01-socioekonomisk-bakgrund-och-brott
Most people who come from a socio-economically less favorable background do not commit more crime than people who come from a more favorable background, and it also happens that people from a more favorable background do commit crime. This means that even if there is a connection between socio-economic background and involvement in crime, that connection is weak. It is not possible to appreciably predict who will commit crimes based on knowledge of people's socio-economic background.
Other risk factors have a stronger relationship with criminal behavior:
When compared with factors that research has identified as risk factors for crime, such as parenting competence, the presence of conflicts in the family, school problems or association with criminal peers, the research shows that these have a stronger connection with criminal behavior than socio-economic background factors. The same applies to risk factors linked to the individual himself, for example permissive attitudes or impulsivity.
They found that cultural factors were far more correlated with criminality than socioeconomic status. This is corroborated by the fact that white collar crime remains so prevalent. If poverty caused crime, white collar crime would be almost non-existent, but it is prolific. It turns out that some people are just greedy. Or mean. Or violent. Or selfish. Or don't care about how their actions might harm others. Sociopaths in particular exhibit all of these antisocial behaviour. They are unable to feel genuine remorse for hurting others, and no amount of money you give to them will ever change that.
Dane here. While I love trains, they are a) more expensive than flying in almost every long distance scenario, and b) take much longer. We are trialling sleeping trains but reception is mixed and capacity limited. People don't like to waste an extra 2-4 days of their vacation on travel. Especially if they're paying more for that privilege. I should note that this isn't an issue of imbalanced subsidies. The EU subsidises air travel (in many ways) to the tune of around €30–40 billion annually depending on what you include and what you consider to be a "subsidy." Using similar criteria, rail is subsidised to the tune of €40–75 billion per year. So rail gets a lot more investment despite it serving 16% fewer travel kilometers per year in the EU than air travel.
The thing is, if even we can't make it cheaper and faster despite our relatively high population densities and high rail subsidies, I fear the case is much harder still in the U.S. My personal position is that trains are excellent commuter alternatives, and should be liberally built and subsidised in all dense cities. For longer travel, there is no substitute for airoplanes.