God is a fictional figure.

Well, to refute your first point I would like to use an analogy. You had stated, "It's the question on why would he make these kind of cruel sicknesses and plague the world with them?" Well, imagine that you are a parent and your child wants to play on the playground. You tell the child, no, and point out that there is a fence surrounding the playground to further prevent the child from entering the dangerous equipment. Though, your child defies you, runs over the fence, and gets hurt in the playground. To explain, the parent symbolizes God and the child can be any human, or even humankind as a whole. God warns us not to sin, or in that case, go into the playground. He knows that the child can/will get hurt. Though, like the parent, God may not be able to prevent his 'child' from entering. To continue, the parent knew that the playground could be dangerous, and had warned the child not to enter. Similarly with God, he warns us by allowing us to develop our sense of right/wrong, but cannot prevent us from sinning/ getting 'hurt'. God/ the parent had no intention of hurting the child, he wanted to child to remain safe, but is is classic human nature to be defiant to an extant. Now, God/the parent can not be held responsible. You may say, "Well, the parent should have been watching the child". Well, God can not watch all 7 billion humans while also preventing us from defying authority as our natural instinct is. The parent, too, can not watch the one child, especially if he has more children. To conclude, God/ the parent had no intention of hurting the child {humans}, and had no intention of letting the child suffer, but when the child does defy the rules, the child {humans} must suffer. After that metaphor/ analogy, you might be asking, "Well, how does this apply to diseases/ cancer?" Well, science would be able to prove how humans interactions with the environment can spark negative consequences. Our choices to go tanning, for example, could lead the the spread of cancer. To reiterate, God has warned us, for we know that excessive exposure is harmful, but yet people are still defiant. God is not reveling in our misfortunes {cancer, disease} but cannot stop it from developing since humans have made the mistake. Like the child in the analogy, we must now endure some suffering for doing what we know is wrong. You go on to say that your mind works by following what is researched and thus "proven" to be correct. Well, the Bible is a collection of books, stories, songs, personal accounts of many people, mostly John, Matthew, Mark, and Luke. When Jesus was able to multiply 5 loaves of bread and two fish, a story you must recognize having read the Bible, is that not a miracle? Has that not occurred through the grace of God? One might question if the story is real. Well, with the many accounts of the moment written, surely all those witnesses were not lying when writing about the event. So, with the written accounts of the Bible's events and Jesus' life, the should constitute as the proof you seem to be looking for in religion. Then you ask, why don't these miracles happen today. With so many more problems in the world, one does not simply create miracles and fix all the problems. In addition, the moment when Jesus was able to feed the 5000 men and women would surely constitute as a miracle then. However, were that to occur nowadays, people would be quick to find a way to deem it fake. To explain, people have become so used to everyday miracles. (Indeed, cars, computers are actually miracles when you look at the science and mechanics behind how they process). In addition, people nowadays witness live 'magic' shows, and would not be very inclined to believe any miracles that happen today. So, if a man was able to multiply food today, people would not want to stop and believe the event, but rather, it would be debated on the news as a hoax, and would be deemed as fake, when, in actuality, it was a true miracle of God. Hey, what if there are huge miracles around us, but we are too busy to see. Let us enter the final round....