Please separate yourselves into those who thought it was good and those who thought it was bad.
I'd like you to discuss this matter between these two groups.
ご質問ありがとうございます。
"Do you think that this is a good or a bad idea?"＝「あなた方はこれが良いアイデア、又は悪いアイデアだと思いますか。」
"Please separate yourselves"＝「自分たちを分けて下さい」
"into those who thought it was good"＝「これが良いと思った人のグループに」
"and those who thought it was bad."＝「そして悪いと思った人のグループに。」
"I'd like you to discuss this matter between these two groups."＝「この２つのグループでこの件に関して議論してもらいたいです。」
ご参考に。
アメリカ合衆国 
