What interests me most about this type of discussion is the fact we are talking about alcohol. It is something which is completely avoidable. We talk about risk and others have mentioned the risk associated with leaving the house, getting into a car etc. Well, for the most part, these activities are a necessary part of continuing with your normal life.
You miss the point.
For virtually all pregnant women, some leaving of the house and travelling in cars is a necessity. Equally, most of us do more of it than is strictly necessary. I did have to work during pregnancy and as I worked too far away to walk, I also had to use transport to get there. Those were risks I didn't have any real choice in.
However, virtually all pregnant women also leave the house and use cars more than is entirely necessary. There cannot be many of us who didn't do any non-essential travel during pregnancy. I certainly did. Those are known, certain risks, albeit tiny, in a way that actually, one unit of alcohol every few weeks in pregnancy hasn't been proven to be. They're risks you don't have to take, in just the same way as alcohol is. But nobody seems to think it's reasonable to tell pregnant women to avoid leaving the house and getting in cars unless they absolutely have to, even though those risks are certain.
Put simply, the two avoidable risks are treated differently by some people. That's an inconsistency, a hypocrisy even if you were happy to travel in cars when you didn't have to when you were pregnant. With that in mind, the question about associations with alcohol should really be put to the people who are on your side of the argument- what is it about the avoidable potential risk of occasional alcohol that makes you want to talk it up, whereas you try and minimise the avoidable certain risk of unnecessary car journeys? It's very interesting.