Studies have found that regular drinkers with cardiovascular disease who drink 7-8 alcoholic drinks per week may reduce their chances of heart attack, stroke and other cardiovascular events.
This only applies to those who were already drinkers. The maximum that person benefits from consumption of alcohol seems to top out at a 50% lower risk with the consumption of 6 g daily. Any more than that and the benefit drops a significant amount.
Learn more about how alcohol affects heart disease at https://www.medicalnewstoday.com/articles/moderate-drinking-associated-with-lower-risk-of-heart-attack-and-death-in-those-with-cvd