Unpopular opinion #1: JYP isn't one of the best companies out there. They've forced many idols to endure extremely unhealthy diets and have overworked their idols to the point of developing mental illnesses (i.e. Mina). They only care about the money they can make from their idols, and once they find that an idol group isn't profitable, they completely mismanage them and drop the ball in promotions (GOT7 for example or DAY6). However, they are the best out of the Big Three.
Unpopular opinion #2: Mullets are a big no from me. I have no clue how people find them attractive. Maybe it's because a lot of my family is from Kentucky, but mullets give major "I slept with my cousin" vibes.
Unpopular opinion #3: Girl group stans are just as problematic as boy group stans. They both hyper-sexualize their idols to the point some fan discords are literally disgusting to read. Girl group stans aren't better than boy group stans, and boy group stans aren't better than girl group stans.
Unpopular opinion #4: Girl groups are slept on more than boy groups. Boy groups have a certain marketability most girl groups don't, and as you see with most major companies, it comes to the root of how they are promoted. Girl groups get treated far worse than boy groups do by companies, case in point being how Pledis treated Pristin or how YG treats Blackpink.
Unpopular opinion #5: Blackpink's members were the only ones to debut from YG because of their money. All of the girls came from wealthy families, and there's evidence of how YG ensures that trainees whose families invested in the company got farther than those who didn't or those unable to. Jennie's family is the wealthiest of all the girls', and that's why she gets treated as YG's princess. Her family has shares in the company, so of course YG has to treat her better than the rest of them. It doesn't mean these girls aren't talented, but it shows how YG values money and visuals more than actual talent.