Who cares now anyway, people voted leave for all sorts of reasons - no one has to justify themselves to anyone. I could have voted leave because I hate using low energy lightbulbs that the EU have forced on me. ( reason enough some might say )
You still don't get it do you?
You have effectively just said, it doesn't matter what I voted for.
So if it doesn't matter what you've voted for then, I'd quite like to stay in please. Not that I will get that nor is that probably the option the one that's in the best interests of the country as a whole now.
The fact is you will get Brexit in time - a Brexit you didn't vote for and don't want - IMPOSED on you every bit as much as any Remainer, just because you don't actually have a real clue want you voted FOR because no one voted FOR anything and the point we are now at, is precisely the 'justifying bit'.
You are now going, "ok, bye, I've made my point, now you sort it out and I'll moan about it later when it bares no resemblance whatsoever to what I had in my head. I have no interest in taking part in the difficult bit of working with people to come to a consensus about what's best for this country and make some compromises and concessions about the fact that I can't have my cake and eat it, because what's in my head trumps everything. Its not my responsibility, its that of the politicians to sort out their and my mess. But don't worry I'll blame anything I don't like on pesky remainers".
So yes you very much DO have to justify how you voted and back it up with how its in the best interests of the country, because otherwise pissed off Remainers will do everything they can to shape Brexit to something that they like.
Now is the time to really state your case, and build a good case for things you feel most important and ensure they are included with other people - including Remainers. You need to persuade others that your vision for Brexit, is the one that others should share and fight for.
To put it bluntly, you can lump it and have no right to whinge about it if you don't like how that looks like, if you are going to take the attitude that you don't have to justify what you voted for. Of course you bloody do.
As for those lightbulbs. I think you'll find that we'll still be at the mercy of lots of EU regs we don't like even if we are out of the EU. Even if they were still around and the legislation was post-Brexit, I'm pretty sure that the market for low energy bulbs would die a slow death with economies of scale if the rest of the EU went with it and we didn't combined with the economic savings of low energy light bulbs. And you'd get it 'imposed' on you that way quickly enough as companies realised there was no long term future in the old style light bulbs and they couldn't be competitive in the wider market if they stuck with the old fashioned ones.
Ok, perhaps the lightbulb isn't the best example here, but the principle is there that we will still have EU regs 'imposed' on us and the idea that we won't simply because we are outside the union, is somewhat naïve and shows a massive lack of understanding of business practice and economics.