Rant about in laws

Me, my husband and our kids (3) live with his parents his mom and his step dad. His mom mostly gets on my nerves about how to raise my kids and her excuse is she raised 3 kids, we have a 6yr old 5 yr old and a 16 month i dont need her telling me how to raise my kids.

His step dad however makes me uncomfortable and sometimes wanna punch him. From the moment he comes home from work 3:30pm he starts drinking large classes of whisky and coke until he can barley walk and falls asleep sometimes he almost walks into the bedroom we sleep in or the kids room. One time he walked into theor room (lucky we have a camera) i got up dragged him out my his shirt and nearly knocked his teeth out. If were not home he goes into our rooms looks through our stuff and opens our mail. He doesnt carr about anyone but himself but yet agreed we could stay there until my husband finished his realtor license. I cannot stand being in the same room as him anytime he is home i take the kids and leave. My husband says I shouldnt do that all the time because then he fights with his mom at night about feeling left out and that we dont like him (he is not wrong on that tho)

I'm about ready to lose my mind though