You shouldn't. If people are being frivilous, let them know, and if they continue, leave them. If Germany can't do this, not only should you not feel sorry for them, you should not afford them any respect.
Is this kind of stuff really necessary here? The angry patronising and overbearingness coming from emerging ideologies ruling the Anglosphere is the reason why the EU is having to rethink its future. It's you guys the ones that have changed.