You can withdraw by emailing KCC. But look, can you afford to lose about 1000 Euros? I really don't believe a denial will ever cause you an issue in future visits to the USA - so if that is your concern, you don't need to withdraw for that reason. So - it comes down to money and your time/emotional investment in this dream. But to be clear, there is no easier type of immigrant visa to get. It really is an amazing opportunity so if you want a life in the USA it is well worth a shot.
You're probably right Simon... But you know as big that opportunity is, I don't want to jeopardise anything in the future, you got me right there, it is my main concern.
Ok, here's how I see it from all your useful inputs:
There is a slight chance we can go through and get our visa. (And that is counting the CO will not do his job properly) Meaning there is a Huge chance we get denied. We all know what that means, we're likely gonna get denied... Maybe I'm wrong (god I hope I'm wrong), but I honestly don't see a CO accepting someone educating him, and just giving it up, like that...
And I fear that just pulling out a law rule that he might have even never heard of will upset him even more. Odds are against us.
So let's say we get denied... At some point, I'm gonna need to file for ESTA for a future trip. And obviously, I'm gonna have to tick the case saying I was denied a visa.
So, even if you're saying it is not an automatic knockout, again, there is a good chance we get denied there again... right?
Then I will have to apply for a non-immigrant visa... There, I don't see it either. How could they possibly give me a non-immigrant just after an immigrant visa denial. Maybe I'm too pessimist here, but I just don't see it...
I'm really torn appart here, because I do realise this is a major opportunity and I might never have that window again, but in the same time, I don't even have a 50% chance of getting it.
So I'm wondering, if the chance is so thin, and the consequences potentially that serious, is it really a good idea to go through with it. I just don't know.
IF i decide to withdraw (which I didn't yet) is there a time limit to do so ? Can I still withdraw even when the interview is scheduled ?