More damming context:

In letters that recently came up at auction, Gandhi wrote to his eldest son, Harlal, in Gujarati, a language in which he chose to express thoughts he did not want English-speakers to understand,

"Manu is telling me a number of dangerous things about you. She says that you had raped her even before she was eight years and she was so much hurt that medical treatment was also to be taken."

As he advocated non-violence, saying that a person should fall at the feet of the rapist of his sister, not fighting back as the criminal killed him, Gandhi did nothing to avenge the rape of the woman who was his adopted daughter, while he required her to sleep naked with him, and she defended these actions as a spiritual practice.

Prominent leaders of India’s freedom movement, such as Vallabhai Patel, J. B. Kriplani, and Vinobha Bhave, confronted Gandhi over his immoral abuse of vulnerable teenagers, while they split from him.

Edit: The takeaways:

1. Gandhi knew his son's sex with children was "dangerous".
2. He had not engaged in such behavior himself.
3. But he chose to do nothing because "muh peaceful".

More damming context:

In letters that recently came up at auction, Gandhi wrote to his eldest son, Harlal, in Gujarati, a language in which he chose to express thoughts he did not want English-speakers to understand,

"Manu is telling me a number of dangerous things about you. She says that you had raped her even before she was eight years and she was so much hurt that medical treatment was also to be taken."

As he advocated non-violence, saying that a person should fall at the feet of the rapist of his sister, not fighting back as the criminal killed him, Gandhi did nothing to avenge the rape of the woman who was his adopted daughter, while he required her to sleep naked with him, and she defended these actions as a spiritual practice.

Prominent leaders of India’s freedom movement, such as Vallabhai Patel, J. B. Kriplani, and Vinobha Bhave, confronted Gandhi over his immoral abuse of vulnerable teenagers, while they split from him.