A GE you can alter your position by the next election, so it's only binding for a few years.
The question itself was not well written, it did not define the alternative.
In your research what type of Brexit have you concluded is best?
The question asked was quite clear -- should Britain remain a member of the European Union or leave the European Union? It is up to our government - who should be acting in the best interests of us and our nation - to get the best deal we can an
Granted it's a huge decision for a voter, but there was at the time and still is a torrent of information available to us as a population to help us make an informed vote. We can't just "have another go" because some feel not enough people knew what they were voting for.
The best type of Brexit I concluded would be one where we left with a deal leaving us as least bound to the EU's rules and restrictions as possible. The EU will do everything they can to make this difficult and to make us an example to other countries with high anti-EU sentiment. Should a favourable deal not be found, then we should leave with no deal. That is the summative result of my own research -- how much do you want to pick it apart and analyse it?
It will not be clean, there will be impacts felt for a long time, but in the long run breaking free from this future superstate is a good move for us.