If we could accept the fact that some people want to live on the streets, we would be able to make their life much easier and better without imposing a certain philosophy on how they should be living.
If people don't want to be homeless, we should do everything in our power to help them get into housing, sustainably. But if they do? No thanks, do that somewhere else, where the land can be reasonably and cost-effectively set up to support that. One of the most expensive, highly-regulated real estate markets in the US is not that place.
It's a moving target and it should be moving in a direction of achieving the best outcome for everyone, regardless if they're investment bankers or heroin addicts.
People thinking like you have been trying to stop progress since we got down from the trees. It's this ridiculous idea that how things are now is something that has to be kept and preserved.
It is a disservice to humanity - those ideas never survive history test, just cause better future for everyone to come later than it could.
Wait, aren't you the one arguing people should move back up into the trees? Well, not even the trees, you are just arguing they should live on the ground, and even our primitive primate ancestors weren't stupid enough to want to do that.
There are many people for which the definition of camping specifically excludes those things.