I'm confused, in what way is this a spoiler?

Fa family - having stillborn children/grandchildren.
Shan Yu - being discriminated by ethnicity and bullied by his older half-brothers since his birth( bullying included calling him with xenophobic slur).
Li Shang - losing his mother as a toddler.
General Li - General Li - losing his wife.
Yao - coming from poor family, falling for mean reach girl who mistreated him.
Chien-Po - his parents hating each other, losing his dad at age of 9.
Ling - losing his dad 2-3 weeks before his 16th birthday.
Matchmaker - a lesbian in a very homophobic society, orphaned as teenager, being hated by her husband, later widowed.
The Emperor - having his loved ones killed by his other loved ones, feeling guilt for this. Of his eight children by the time of canon everyone, save for three sisters, is either dead, revealed to be a horrible person or both.
Chi-Fu - witnessing one of few women to treat him nicely dying a terrible death.
Princess Ting-Ting - losing her mother at age of 5.
Princess Mei - her favorite activities being forbidden, being separated from her beloved brother and, yes, losing her mom at the age of 3.
Princess Su - Princess Su - never knowing her mom, being sexually abused by her older half brother when she was like 5-6 years old and her brother was in his mid-20s.

All of them are sad but Ling, Matchmaker, Emperor and Su's are the saddest to me personally. My last birthday( which I spent arguing with my parents in the bad restaurant and thinking of my recent painful breakup) seems just fantastic compared to Ling's 16th birthday.

^^ I by no means hope Disney will be so impressed with my headcanon that will proclaim it canon. I may not be particularly humble but I am no THAT overconfident, nowhere near it. The descriptions of picks were supposed to spoiler the most important plot twists frommy upcoming( I hope) Mulan fanfics. I need to be overconfident to expect my headcanon to interest Disney but not to expect it to interest some users here.

But, yes, nothing really spoilering,

I mean, it's sexual abuse.

And the Matchmaker.