I feel like a bad person.

I had a miscarriage a year and a half ago and now i'm pregnant with my rainbow baby. But I see these horrible mothers and I get so mad. My brother-in-law's family is horrible his cousin has three kids she abandoned and left with her father and her sister still gets all the child support and all the food stamps and refuses to give them any. Now she's pregnant again and everybody is happy about it and act like she's not about mom. Is it bad I hope she dies? That I hope she dosent have anymore children. She's not a good person.