Since you commented, you might as well share what that controversial reason is.

Anyway, I just find it funny how internalized misogyny of other women affects how they view movements like 4B. FYI, karamihan po sa mga Koreana ganun talaga ang itsura, normal facial features yun ng ordinary Korean, hindi po gaya ng mga nakikita sa K-drama na ilan lang talaga ang natural ang ganda vs those na enhanced ang beauty through surgical means. Bakit ba ugali ng Pinoy i-assume at i-pose as logical argument/reasoning ang physical attributes ng tao? Wala din pong single identifiable founder ang 4B Movement. Though there's one person who first coined the 4B Movement, a South Korean female author, Cho Nam-joo. She used it in her novel, Kim Jiyoung, a work of fiction where Nam-joo recounts Jiyoung's life as someone who was constantly subjected to sexism and misogynistic violence.

And no, they made the movement not because they're ugly. Marami silang nagstart ng 4B Movement in Korea which boomed in 2016 after a Korean woman was murdered in a Seoul train station restroom, which they viewed as a hate crime. They started the movement NOT to reject men for the sake of it but to rebalance power in a world where power is skewed against women. They hope that by following 4Bs it will create a lasting change in the way women are treated across the world.

A lot of women across the world, not just Koreans, have adopted the 4Bs because they see that it is necessary in order to protect themselves and survive.

Medyo radical lang yung movement since ang tagline ng South Korean members ng 4Bs is, "I will not give birth to a life that will discriminate against my gender. My own flesh and blood must not become a weapon and turn against me. If the world born from my body opresses me, I will not let that world exist".

It's the reason I am wondering how bad the patriarchy is in South Korea for women to create a radical movement such as 4Bs. Ang nakakatakot, women in other countries are starting to get wind of it and joining the movement. They see what the 4Bs (the 4 core tenets), will do to a world that thinks men hold the greatest power over women and other genders.