>>761680818% increase in colon cancer
Let's look at that for a moment.
http://seer.cancer.gov/statfacts/html/colorect.htmlSo colon cancer affects ~40 people per 100k, an 18% increase ups that to about 42, and that is only new cases, not deaths, which has stayed at roughly 50% of the total (25/60 in 1970, 20/40 in 2013)
So, colon cancer is clearly not a large killer and has not been, a slightly higher chance 0.00042 vs 0.0004 is not going to make me give up sausage. And I would guess family history is a much larger factor.