Your problem is that you don't understand what is going on here. Sure, God could wipe out all the weeds in his garden in an instant. But that would harm the crop He is growing. You think comfort and safety in this world is important but that's just a tiny blip in all eternity. Everything that happens here is for the purpose of selecting those who get to be members of God's family for all eternity.

Here, think of it this way. Do the Marines try to make the recruits comfortable during boot camp? Of course not. They try to make it as uncomfortable as possible so that the weak are washed out and the strong are made stronger by overcoming the stress they are subjected to.

It is no different with God. This world is boot camp. Don't complain about boot camp being tough. You are expected to fail. Remember that, and don't!