Well, I know that in the first game, you are also playing as mike,
So did he make the first animaltronics? Purple guy aka William Afton, destroyed the animaltronics, but why? Was he not proud of his son for making the animaltronics, or was he just a sick person? This can be explained in the last cutscene where Mike talks about "fixing" baby. Did William destroyed the Sister Location Animaltronics two? This could be true because who wouldn't destroy something that killed your daughter. This is my theory, what do you think?
William Afton made these animatronics to kill, his son cuurently called "Springtrap" helped design them. By destroying them do you mean set them on fire or the FNAF 3 minigame? Purple Guy destroyed them because his father asked him too... He set the Fazbears Fright on fire because he didnt want to be Alive anymore feeling the chidlrens pain that he wasnt even the murderer of them. It is unknown if Freddy Fazbears Pizza was set on fire or not. "fixing" baby is refering too saving his Daughter as seen in the Real Ending. The Sister Location animatronics saw the future and wanted to escape or HE will find them and they wont be able to hide, this is refering to them wanting to leave so they can be free and not destroyed.