Breastmilk rant

I exclusively pump for my 4 month old. I have an over supply to the point where I have well over 1,000 oz in storage. There is a lady I know who is struggling and her baby won’t take formula. I want to donate milk to her but my husband husband told me no. Like excuse me? I’m a grown ass woman and I don’t see anyone else attached to a breast pump for 3-4 hours a day. I made the milk why tf can’t I do with it what I please. I text my MIL thinking she’d understand since idk her twins were micro premature babies and she used donor milk. Nope she thinks I should hoard it all away too. When TF did these people become so selfish?!