It’s one thing to talk during the khutbah. That’s absolutely wrong. But it’s different when you ask someone else to keep quiet while the khutbah is going on. That might seem right. But it’s wrong! For real for real.
Volume 2, Book 13, Number 754:
Narrated Abu Huraira:
Allah’s Apostle (p.b.u.h) said, “When the Imam is delivering the Khutba, and you ask your companion to keep quiet and listen, then no doubt you have done an evil act.”
Obviously, it’s easier said than done. But inshaAllah if we make the intention to follow this Hadith, Allah will help us. :)