Guidance

I need some guidance/advice on how the best to go about this situation because it’s sensitive. My husband’s step brother and his wife are pregnant this is her 5th with 2 she has given up for adoption. The two kids they have 14&9 are with my in laws due to mom and dad’s battle with addiction. They have told my in laws they want to give this baby up for adoption as well because they have not wanted anymore children with the 2 they already have. Me and my husband are going to visit his in laws and his stepbrother and sister in law live in the same city. We know mom and dad are struggling in their lives with everything going on and with their addiction and not having custody of their 2 kids and we don’t want to be insensitive to their situation and feelings. But would it be wrong for us to ask them if they would consider us me and my husband for adoption? I am 29 and my is husband is 32 we have been together for 12 years. We have had 4 miscarriages. We have always had the desire to be parents and have always felt the desire to adopt as well whether we are able to have any ourselves. I just want to be all around considerate of everyone involved. So any guidance or advice is appreciated! 😊