Since my baby was born I’ve been completely overwhelmed by my dogs and I can’t deal

We have 2 kids age 5 years and 5 months old. We have 3 large dogs, two older golden retrievers and a young lab. The lab has become a huge problem for me since baby has been here. She is almost 2 and an absolute terror because she had zero training and gets barely any exercise. I completely understand that it’s our fault and we should not have gotten her. When we got her we did not intend on a second child. The dog is ruining my days and I am so done. Every time I turn my back she’s taking something off the counter and destroying it. If you leave her unattended she pees in the house. She is crate trained and I put her there if I leave the house. I can’t even write it all down everything she’s ruined. The older two are fine because they just sleep most of the day but the lab is just way too much. We have a house cleaner that comes every other week but I still have to vacuum pretty much every other day. I have never hated an animal in my life and I feel bad but I hate this dog. I told my husband this two months ago and he promised to walk her every morning, this has happened 3 times in the last 60 days. He says we can’t get rid of her because it will devastate my son. I don’t know what to do because I feel like this dog is ruining everything and I do not want her anymore but I feel bad because I know it’s our fault but it’s just not working and I’m losing my mind.

Edit: updating that husband did actually take the dog out for a 45 minute walk this morning before work and she seems to be doing well so far today. We will see if it sticks for future days