Ramadan: Did Allah order us to unconditionally obey a Fallible person? Allah will never do this?

Messengers are not infallible, but you are to obey them. If you do not have faith in Allah and respect his choice, then don't pretend that you do but join the other side so everyone will know in honesty where you stand. If you cannot get over your ego to submit to Allah and obey his messenger, despite that none but Allah is perfect, you will not go to heaven and Allah nor his messenger need you pretending to be on his team.