Mild weather, high tolerance of vagrants and their activities are what brings the numbers up for homeless vagabonds. In the area I worked, plenty of low income housing. Illegal immigrants, immigrants, in general, not a big factor. Those here are employed at minimum wage at jobs that these problem people cannot do, will not do. Not like they are bringing up the wages or keeping them down. This is not a problem caused by immigration.
The homeless who are causing the problems in terms of hygiene and safety, have reduced any area where they live into a stinking cesspool. Many of them were in homes until they ruins them. They want no regulation of their lives but do not live in a way that makes it tolerable to most of us. It’s dangerous, when there are so many of them.
This is where individual rights vs those of the majority of residents come to a clash. More draconian rules about how you can live publicly need to be made sndcrnfirced. Though not allowing to squat and leave excrement around hardly seems draconian to me. Or shooting up and leaving the needles right there. Littering and other broken windows rules ignored can lead to dirty chaos