You see, thats the issue with this debate, the scare mongering, how do you know it will be worse ? You dont.
Uk has to pay into a club where UK, France and germany are the major contributors. Most take out.
We import from EU more than we export, so what exactly will get worse ? If there are tarriffs, then EU will pay more. Germany will make sure that does not happen as it affects them the most, and lets face it, Germany runs EU.
So how will it be worse ? If anything, being 5 th largest world wide economy, EU needs UK as much as UK needs EU.
It will find a balance when both sides want good trade, and be real, all UK ever wanted was a free trade agreements and friendships, not united states of federal Europe (but as usual nobody fuckin listens)
There are those that are vindictive, want revenge, want blood, luckily Merkel et al will be smart and not hurt everybody.