Sarah Jane Coffey, let me apologize to you on behalf of the startup ecosystem. You are right and they are wrong. Simple.
I have founded several companies and I have built three of them to 500 employees. I was an energetic and driven Alpha Male leader having been an Army officer (paratrooper) in the past.
I liked a drink but I always thought it inappropriate to be a “leader” in the drinking department. I did drink to excess in the Army when posted overseas and in the US. It was part of that culture and I was a young, impressionable boy wanting to fit in.
As a 33+ year CEO, a current startup CEO adviser, and a CEO coach — excessive drinking is a scourge and it is an unattractive element in the success of an enterprise. It would be an input into my opinion of a company and its leadership. It is also endemic to the startup world.
A bad idea held by a majority is still a bad idea.
Be comforted that you are not the problem.
Good luck in all endeavors and listen to your better angels. We all have good and bad angels. We are ruled by the ones we feed. Feed your better angels but know you and they are right.
Now, get back into the game and take your revenge on the system by succeeding like pistachio ice cream.