All this Flat Earth theory entails a terrible logical fallacy. It's all plain bulverism, and that's all. You say that Round Earthers believe (which doesn't really go here, because it's actually a fact) that the Earth is round. However, you argue that we believe this just because we are told so, which means that the governments is saying the Earth is flat. However, you argue, the governments say this because it's a conspiracy. Therefore, the Earth is flat. That's downright bulverism, alright:
1.The governments say, A implies B.
2.But they say so because C happens (no proof for this, but I'm going to ignore it).
3.Therefore, A does not imply C, and implies D (just because I can't think of E, F, and G, and we have yet another fallacy, argument from ignorance).
A= numerous experiments conducted by what ranges from prominent scientists to everyday observation.
B= that the Earth is round.
C= a massive conspiracy, and making up experiments, as well as retouching photos.
D= that the Earth is flat.
E, F, and G = other shapes.