Nah, move your ass forwards. It's no different to you right there in that point in the line.

But at the back of the line its no longer people queuing in the barriers, they have started making up their own queue which has now branched off in two directions and new people arent sure which branch to join. Other people are trying to get to something on the other side of these queues and have to squeeze past people.

I get the logic, and it's quite a good point if you have unlimited space for the queue, but stop being so entitled and move your stinky ass up the queue.