Family “baby mama” issues

My brother has 4 kids and 3 baby moms, the issue is my brother is a deadbeat and I can agree with that. Before I had my own child I would attempt to help out with the children when I can, I’d send bday gifts, christmas gifts , keeping them when I would visit home. my other problem is I live 7 hours away from home, and have been since 19. I’m 24 now and Last year I had my own child in August, so now I’ve been more in tune with taking care of my own home and child. So now it’s Why is his 3rd baby mama sending me paragraphs calling the whole family dead beats , idk if we’re wrong or she’s wrong. Yes my brother is a deadbeat, but we have two younger brothers who are 20, 21 and one of them is in college playing football.. so it’s like what else does she expect from me and my younger brothers. If anything I feel like her beef is coming from my brother not helping like he should, so now it’s almost as if she’s throwing the responsibility on us now. They all have him on child support , but I can’t step up and be a full time parent just because my brother isn’t. Can someone tell me if I’m wrong 😭😭 I’m open ears