NTA They chose this path long before you, they chose to ignore you, they chose to dismiss you. Now they don't get to shift sides because it suits them, cut all communication, drop them entirely and let them to handle their own problems on their own. A big issue of society is that they don't understand consequences, and consequences come with every decision.

NTA. You don't owe your parents for doing the absolute bear minimum in raising a child. Where is the emotional comfort? Providing all of their attention to your siblings, where were they? Constantly putting you last.

NTA They very clearly believed wholeheartedly that you would be of no use to them. Forgetting entirely that, that is not the reason you have kids. I truly feel they will only be using you if you let them in even a little they haven’t done anything to make you feel like they should be your next decision.

NTA Going no contact for some time will be best. Write a letter or type an email explaining your reasons and feelings. Give it to any family member you want so they know what is truly going on. While going NC focus on yourself and company. Keep in contact with your lawyer and upgrade your security. Making sure that no one from the family involves themselves with your locations or clients. After some time later when you feel comfortable you can discuss things with your parents. And the only thing that should be discussed is improving the relationship. Nothing should be given unless YOU want to. They are parents, they have a bare minimal obligation to raise their children for success (which they didn't do for you). They shouldn't raise kids as a long term investment. Also recognize that you currently have all the power. They want something from you but also have nothing to offer. All they have is petty tactics. View them as an enemy unless they prove themselves otherwise.

NTA. Deep down do you even respect your family members? How was the relationship with your brother & sister? It seems to me that respect is earned not freely given. They gave your siblings the opportunity and money to reach their dreams. Did you receive anything? Yes, they put a roof over your head and food was provided. Do you look like your siblings? Did you ever talk about the disrespectful behavior towards you either to them, grandparents, aunts,uncle, church? They are guilting you. You need a lawyer and a therapist. And someone who has your best interests /welfare at heart. Good luck, and protect yourself legally and emotionally. You also need to respect yourself at the end of the day.

You should post your story and tag all your family members and your siblings and parents friends and coworkers

Sorry forgot to say Goodluck and congratulations on over coming everything and making something of yourself.

Tell them you will give them a percentage based on the amount they payed for your college and also will give the same amount of support as they gave you throughout the different achievements you had. They are having a big dinner? Sorry, something came up, and so on. Then, after about 10 years, contact them and ask them for money. You dont need parents like that. Imagine what they would do if you had kids. They'll try to backseat parent your children and undermine everything you do. Continue being great and go low contact at a minimum

Follow your heart

Think it about it. Do you want that near your future children? And wanting in on your business? I've come across heaps of videos with similar stories, and it ends with people losing what they busted their arses for, to insane people. Sorry, but they suck.