Comparing Theism with Flat-Earthism

[Prycejosh1987]

So, what do you guys here think, is comparing theism with Flat-Earthism valid?
In my latest YouTube video about atheism, I compared some arguments made by theists with some arguments made by Flat-Earthers.
According to me, saying evil in the world is caused by free will is similar to saying ships disappearing bottom first is caused by waves. You can (and should) explain some instances of ships disappearing bottom first with waves, but obviously ships disappear bottom first even when there are no waves. Similarly, you can (and should) explain some instances of evil in the world as a result of free will. Holocaust was a result of people wanting Holocaust to happen and acting to achieve that. But, obviously, some evil in the world cannot be explained that way. Earthquakes being one of the most obvious examples.
Also, according to me, the dialectological argument, "If there is no God, why does the universe behave logically?", is similar to the Flat-Earthers using the horizon appearing to rise with you as you climb as an argument that the Earth is flat. Let's say there is a God, how does a God explain the universe behaving logically? It doesn't. In fact, if there is a God, we would expect actions not to have unintended bad consequences, but they do. Similarly with the horizon appearing to rise with you as you climb. Let's say, for the sake of argument, that the theory that the Earth is round cannot explain it (it can, but let us pretend it cannot). So what? How does the Earth being flat explain that? It does not either: if the Earth was flat, we would expect there to be no horizon in the first place.
I was wondering what you think?

The bible does talk about the circle of the earth. Why would God prevent all bad things from happening.
1. people make their own choices, the devil works strong in the minds of people. 
2. If God only did good things and allowed good things to happen He not be God. 
3. God has a sovereign will, where He works for the good of all men and for their bad too.