I believe that people blame God for evil becauese they do not understand where evil come form. They don't understand that evil begin within one's self. It all starts with a thought. God does not cause evil nither does he tempt us with evil. That would be against his character.
He does not temp sinful people with sin. We are allowed to sin because God has given us free will. God want us to obey him because we love him and choose not to sin. God allows evil to exist, because it is part of him allowing our free will to kick in and choose good over evil.
Trials in my life has taught me patience, and no matter what God, is able to cause me to be able to endure. Earlier in my christian walk I allowed satan to hinder me, but glory to God I find that I am stronger because of it, and now am able to persever.