Nutrition Facts dot Org just published a youtube video on this subject today. The studies that associated light drinking with benefits were found to have systematic errors in more recent analysis, and after correcting for those errors researchers found that there is a linear relationship between drinking alcohol and increased cancer risk. That is, there is no drop in risks with light drinking. Any amount increases risks of cancer.

All the sources here:

https://www.youtube.com/watch?v=NEKHOvlMVIk