Now there are two possibilities. (a) Either they themselves are actually believers in the open plan office kumbaya social happy togetherness crap, in which case they will think you antisocial for not wanting to be part of that. (b) Or, they are fully aware that the company just wanted to save some money on not having walls and the kumbaya social happy togetherness is just the way that they are whitewashing that decision to make it seem desireable to still work there. In that latter case: You not drinking the kool aid will be a red flag to them, making them have doubts about whether they will be able to adequately keep you under control or whether you will turn out to be an unstable element with a mind of its own. They don't need to resolve those doubts. They just need to have them, in order to make them not want to hire you. -- In either case, it's a dangerous game for you to play.