のはよせ

stop it

→ の
phrase Rare #20,414
stop it Used as a blunt command to tell someone to stop doing something. The のは part nominalizes the preceding action, so it can often be translated as “stop [doing] ...”.
JA: そんなに自分を責めるのはよせ。
EN: Stop blaming yourself so much.

じゃおれの連絡先を書くのはよせ

Then don't write down my contact information.

— マルコムX (1992)

泣くのはよせ

Stop crying.

— 暗殺の森 (1971)

自分達が世話になってる人間を追うのはよせ

Stop going after the person who's been looking after us.

— ファイト・クラブ (1999)

感情のままに行動するのはよせ

Stop acting on your emotions.

わずかなのことで言い争うのはよせ

Don't argue over such a small amount of money.

バカな夢を見るのはよせ

Stop dreaming foolish dreams.

— シカゴ (2002)