Unknown known siblings

Submitted on: February 5, 2019

I can see my half-brothers Instagram photos, he looks like me…he’s a young adult now…so he deserves to know right? That I exist? That his Dad is my biological dad. But his Dad doesn’t want his family to know about me…so I remain silent…he wants to pretend I never found him. He hasn’t told his kids, maybe not even his wife …my siblings…someday will they be mad at me for not telling them? Will my bio-dad hate me if I tell them- that’s supposed to be his job but he refuses to do it. Would it even matter if he hates me? He doesnt want any contact with me now anyways. So here I am looking at siblings Instagram photos and wondering what my rights are,
wondering what their rights are, and wondering how I would even Instagram message them this.