Why does it seem to be getting worse?
Probably because home invasions by increasingly large gangs is becoming more popular.
You would think they would learn.
If criminals were capable of learning much, they'd learn violent crime is a poorly paid, high risk occupation. White collar crime pays better and involves lower risks, but violent crime is more injurious to criminals than everas well it should be.
White collar crime requires education, and education requires smarts and work; thus, far easier to do home invasions.