But did they campaign on facts? Did they have a plan? Are they going to use this plan for brexit? Where is the plan?

I understand that the plan is maybe not detailed, but I assume they have some kind of detailed roadmap on how to proceed? The Scotland independence referendum had a very detailed plan, hundreds of pages long.

The other issue is the British government: that Cameron did in fact not prepare for losing is his biggest blunder, and history will judge him for that.