Is this child abuse or neglect?

The dad does not work and is lazy. He is on the sex offender list for 2 crimes. He supposedly molested his cousin. He hid it from his wife and she didn't find out until they were married for a few years. She is a high schoolg rad and can only work minimum wage jobs. She has been out now workers comp for months now. She doesn't want to go back to work but her doctor said she can so she is fighting make it. The only income they have coming in is state aid and wic. Her 2 kids get money because they have ADHD. The younger boy is 4 and weighed almost the same amount as the 9 year old last year. The young ber is 4 or 5 and has ADHD so they say. He often sits in peed or poopy diapers for hours. They never check his diaper and fight over whos turn it is when he needs to be changed. The parents yell all the time and that is the only way the kids talk. The older boy is 9 and super small and skinny. He has ADHD as well. He still pees the bed and poops his pants. He wa suspended last year from school for saying he was goign to bring a gun to school. He was also removed a few weeks ago for throwing a book at the teacher, He doe snot listen to anyone. He takes things every time he comes to my house and I have to check him when he leaves. The house is filthy. The kids playroom upstairs has toys and food wrappers all over the floor and you can't see the floor. They have dogs and cats that don't get good care. They have killed 2 dogs due to negligence. The dad spends and charges whatever he wants. For having no income,t hey have satellite radio in their one car, new cell phones with internet, ps2 with every guitar hero and rock band game, a big flat screen tv, cable, internet, a lap top, flat screen computer panels, electric guitars, drums, dj equipment and so much more. The mom had sex with another man and the kid saw. She did that when the husband was out of town. The water for the 2 dogs are filthy. We paid for the older boys therapy for a while because they have no healthcare and medicaid doesnt cover it. The doc said he needs to be on a schedule. So my wife and I made one to keep him on track. They never used it. That was last year. Last month, I bought him a cool magnetic task board that never gets used. The younger boy has a computer in his room with internet and is on it all the time. We tell him not to download games on. He goes through our stuff all the time and never lsitens. When he pees his pants at night, he gets up and changes his clothes and hides his old ones. Are they just bad parents or do they need to be reported?

Yes. I still can't decide what to do. My wife said don't report anything.