I'm looking for some help understanding the second line in the below. The context is that Person 1 is showing pictures of girls to his friend, Person 2, who has just transferred to the school.
In the first line, Person 1 says that she is 「ガチで好きな人ランキング圧倒的１位だ」- she is overwhelmingly #1 in the ranking of favourite / most liked people.
The third line implies that if he (Person 2) approaches this girl he's going to get a hard time from other boys (get stabbed) since she is the most popular.
Line 2 however is a bit unclear. Does 本気すぎて refer to the people who voted for her, and カワイイって言えなくなる refer to those same people?