When you allow people to buy things freely - in this case a limited resource - this was inevitable. Nothing to do with capitalism, i.e. private ownership of means of production. It would have happened under any system in which people can spend their money on whatever they want.
Here's where you point out credible alternatives at national scale, where the powerful machinery of state which even Lenin requires doesn't get taken over by dictatorial narcissist psychos
People don't want to organize around homeless outreach, that's why the huge, costly, and incessant efforts in most cities never turn into literally any useful political action. Most people are more selfish than that, and it's also unclear how giving away donated food and socks translates to anything, anywhere else, in society.
Parents/teacher groups and labor unions are a lot closer to the mark because that stuff has actual impact on the people involved. Although I'm skeptical - the parent/teacher zeitgeist is now one of conflict after the COVID school closures. But it's a place to get traction.
The old school anarchists used grand acts of violence, i.e. propaganda of the deed. Luigi tried that, seems to have dissipated.
Everyone's just rich enough to not care about shit like this any more.
There's nothing special here, just pretend you showed up with 100 signed photos of yourself and said you were selling half of them to the highest bidder and keeping the other half. Now your collection of autographed photos is ostensibly worth 50 times as much as you are selling them for.
When you allow people to buy things freely - in this case a limited resource - this was inevitable. Nothing to do with capitalism, i.e. private ownership of means of production. It would have happened under any system in which people can spend their money on whatever they want.