OK, but who tf picks that time to tell their mom "thank you for bringing me into the world" as someone faints?? That was definitely NOT the time. And any kid in that situation would prob be scared someone fainted and ppl around are freaking out, not doing what MC did. Even if sis was faking it, she was about to blow out her birthday candles.... so still not a good time. Like I get it, they're trying to show that MC gets neglected and the parents focus all their attention on the sister. But this was just a really bad example to show it... maybe its lacking important context, but its like that scene is doing the opposite of what it should.
The other scenes were good though.