If you allow anger and frustration to be the backbone of your faith you will prevail as an Atheist. imo, how can blaming God and being so angry with him equate instead to there being no God? The basic drive to Atheism, imo, is a weird conundrum that used anger at God as the basis for proof of his non-existence. Very interesting psychological logic.
Utter bollocks. if you equate rejection of the concept of god as some kind of hissy fit then this sounds more like wishful thinking on your part in order to ease the cog dis.
Ask any atheist why instead and it will usually just come down to research and a total lack of credible evidence. Any anger and frustration seen is with having wasted years of their lives in a lie and the destructive grip religion holds over the masses.