It's the end! NO hope! it's all OVER! (Game of Thrones S7 Episode 6 spoilers)

[AbbathTheGrim]

Hiku said:

The one wight is notmeant to prove the severity of the problem. Only that the problem is real.
What will show Cercei how serious the threat is, is Jon, Tyrion (and possibly Dany), risking their lives to ask for help, when they recently demonstrated how easily they could wipe out Cercei's army. Add to it that they lost a dragon trying to secure the wight, and I see no reason why Cercei would doubt the severity of the threat.

Cercei:

"Let them do all the work, let them face the White Walkers in battle, let them shrink their numbers and who knows if she loses her dragons in the process. Let us pretend to give soldiers and help and then we will not show up. Then whatever is left of Lady Stormborn and the Bastard's armies after they face the WW will be easily taken care of."