Let's ignore the fact that the prime minister is an overprivileged, racist, lying clown and an embarrassment on the world stage and concentrate on purely economic policies. So the questions are:
1. How much economic damage would you accept as a result of Brexit before you stop believing that the Tories are the ones who can be trusted with the economy and that this is a good reason to vote for them?
2. How much damage would you accept to public services as a result of chronic underfunding by the Tories before you decide that actually it's better to raise enough tax revenue to be able to fund schools and hospitals?
3. How many children, nurses, hospital patients, homeless people, disabled people or people whose jobs are at risk from Brexit are you happy to make financially worse off as long as you are alright Jack, before you take a long hard look at yourself?
For the purposes of answering these questions, assume that economic conditions in the UK and the rest of the world are as they are now.