I don't think so. Those words express how they feel right now at that moment. They put into words hopelessness they feel at that moment. Expressing it is part of process.
Forcing them to lie about their real feeling at that moment won't help them overcome anything. It will only make them and anyone who is watching not to trust you with their feelings.
"Forcing them to lie about their real feeling at that moment won't help them overcome anything."
First, I am not forcing anyone.
Secondly, there are thoughts and there are feelings.
You can feel deep sorrow, but thinking that this sorrow will last forever is a different thing.
And applying the scientific method suggests, nothing lasts forever.
That insight makes the sorrow nothing less intense. But it helped me, processing it, instead of letting the grief screw up my life, too.
I know a bit about psychology and spiritualism. Mantras and autosuggestion. They can make your life better, or worse. So I simply share my experience of my success with it and my observation of how it worked out for others. And if anyone feels forced to do anything, simply by me sharing my experience, than I don't see anything I can do about that, except feel sorry for them.
Forcing them to lie about their real feeling at that moment won't help them overcome anything. It will only make them and anyone who is watching not to trust you with their feelings.