Avengers 2 Age of Ultron

According to the new avengers 2 trailer,everybody seems to be against iron man. I have not seen the movie and obviously nobody has. this is a swali for anybody who reads this article,why do wewe think everyone is against iron man?I am confused and sorta mad because iron man is my inayopendelewa character,and if they make every avenger against iron man,i don't want to like him as a villian. I know this sounds stupid but,i don't want him to be a villian because it will ruin the whole sekunde movie,that i was looking mbele to seeing in movie theaters. when i watched the trailer over again,i realized they were mad at iron man for some robots he created that turned evil. i don't know the cause for this plot,but i guess it is supposed to be interesting. i am hoping it has a happy ending.