My granduncle would agree with you. He worked hard with his whole life to feed his wife and four children. China sank in the food crisis from 1959 till 1961; millions of old people and children died of famine, but his wife and children survived. One of his children told my mother later that he jumped into the cold lake to dig lotus roots in midwinter in order to find out some food at that time. When he came back home, his rubber overshoes had frozen in the feet. His eldest daughter had to cut the overshoes. My granduncle very liked liquor and fat meat. When he was getting old, diseases would increase. His doctor stopped him to drink and eat fat meat. He asked the doctor whether he would live forever if he didn't eat fat meat and drink. The doctor answered, "No." So he said, "I was going to die regardless of eating or not, why didn't I eat?" On the day before his death he wanted chicken soup, his second daughter didn't cook for him and said, "Your doctor asked you to eat less meat." The next day he died, his second daughter carried on terribly and blamed herself didn't meet her father's last wish. My granduncle lived 80+ years old and his wife lived 90+ years old.
Wisława Szymborska-Włodek (2 July 1923 – 1 February 2012) ______ a heavy smoker and died of lung cancer
Deng XiaoPing (1904-1997) ______ a heavy smoker
Gloria Stuart (1910 - 2010) _______ a heavy smoker and died of lung cancer
I'm not going to advertise for tobacco companies, but I believe in free will. As DngrMse said, "In a very few short years...you're going to die."
I guess that proves that smoking and eating fatty foods have nothing to do with longevity.