I believe I understand your point of view. The closest real-life comparison to this situation is when a child is adopted and only finds out after growing up. The feelings are the same as the MC's in the "Burn Bridges" route. Adopting a child is a noble act, even more so, I believe, than simply giving birth to one, and the parents who hid the truth from their adopted children did not do so out of malice—quite the opposite. However, the effects are equally devastating because we are human and not always rational; we have an entire emotional framework.
I’ve seen cases where children became enraged, left, and never reconnected. A young woman near where I live attempted suicide. Others cut ties with their entire family. Reading some posts on Reddit and Quora, I’ve seen parents asking for advice on how to tell the truth, and they behave just like the MC’s parents. They delay, promising to tell as soon as the holidays are over, or once their son or daughter finishes their college exams, or when they feel more stable. They try to find excuses to delay right there in the online discussions, just like the MC’s parents who wanted to wait until he was 18, then until Jess turned 18, then until she got into college and he settled into his new job. And everyone who has gone through this says: it’s much worse. When the truth comes out, if the children are now adults, it will be devastating.
That’s what happens in the route where the MC cuts ties, and it’s what we see happening in real life all the time. The other scenarios don’t capture this with the same precision. I’m interested in the topic because I was also adopted, but my mother told me when I was 7 years old and always reinforced how important I was. If she had kept it a secret and I had only found out as an adult, I would have hated my uncles and aunts, my cousins, brothers, and sisters who conspired to keep me in the dark. That would have destroyed my family life. Thankfully, my mother knew how to handle it, and I will be eternally grateful to her and my father, who literally saved my life by welcoming me and never deceiving me.
That’s what happened with the MC. Out of excessive caution, his parents caused significant harm, and in real life, it doesn’t get resolved as easily as in the game. Despite the noblest intentions, emotions come into play, and reason doesn’t survive.