On the 'brilliant minds front' I have some insight on this as I work in policy for a FTSE50 company. So i respond to policy developments on behalf of the business and advise the business on behalf of policy developments. My area is very shaped by Euroepan regulation so I have lots of interaction with e European Commission and uk Govt. I also have seen the workings of the EU up close, know it needs fundamental change and think the idea of a federal Europe has always been a district ivf pipe dream which is at the root of the EU's current problems.
It is not true that the bred it vote has triggered a wave of far right support across Europe. All of that has been brewing for years and the Brussels elite has either ignored it, or believed the answer to be 'more Europe' (I've further integration) they are wrong. I voted remain but hoped a narrow win to stay would mean we could advocate for change inside the eu. Now we must do it from outside. The message is more powerful, but the uk's own position is weaker.
Across uk government there is work being carried out to understand the impacts on various bits of uk business / economy and how to manage those. It is very complex. This should inform the trod of bred it we go for, although it is safe to say almost all business would rather we stayed in the single market.
So lots of the U.K. National civil service is working on understanding all the very very complex detail. Then specialist teams are working up possible negotiating positions. The brilliant minds already know and it will become increasingly clearer to the public just how economically calamitous a hard brexit would be.
I intensely dislike the Liam fox / David Davis / Bojo (which auto correct thinks is Bono! Hilarious) triumvirate. But don't think it's crazy to let them try, for the on a give themselves enough rope to hang themselves approach. I also think if you were negotiating for a soft brexit / special deal which include access to the single market and controls on immigration you'd be crazy to talk publicly about it now. Rapid die hard brexit ears would have too long to try and kill it. No, better let reality sink in now then ride to the rescue later on.
OP you said you didn't understand economics or politics: time to educate yourself then. This is the most significant political moment of our lifetimes. Start reading, do an a level in economics (honestly it's all you need for the basic principles, after that is just opinion).
I cannot stand the 'they will sort it out' view. We are not children. The government are not our parents. We voted for this. We chose our government. We the people will decide what happens. So if you don't like what you see, educate yourself and get involved.