Why "desparation" and why "put an end to permanently"? Ideas are just ideas, perceptions just perceptions, experiences just experiences, identity fabrications just identity fabrications.
Because suffering is just suffering.
You suffer, they suffer, it doesn't matter that it has no findable essence, it's still there. There are beings in agony and they don't know anything about your idea that their suffering doesn't matter.
People suffer in dreams all the time, it's all fabricated, nothing there has any substance, but they suffer.
Putting an end to suffering is very important and should never be forgotten.
And no matter where suffering is, whether it's you or someone else, it is worth it to work to put an end to it.