DH voted leave but can't articulate why

[DifferentViews]

Sorry if this has been done before, but i need to get this off my chest and perhaps get new insight or come to a better understanding, so i can discharge some of the anger i feel.
So, i voted remain and he voted leave. Up to a point, i am prepared to accept we have different political views and can move on.
Talking to him last night, i asked, knowing what he knows now, would he still have voted leave and he said yes.
Cue a long discussion as to why and really he has no real idea what he was voting for, or what he wanted. Its just so woolly...he wanted change, but can't articulate what that would be.
It was just a knee jerk reaction to not liking the current situation and wanting things to be 'different'.
Its just made me so angry that he would still vote that way again in spite of all the evidence that things wont be 'better' out the EU.
His argument is that we don't know whether it might be better, so that gamble is worth it, but i am really struggling to see his point of view.
Please, can someone give me some idea how i can come to terms with this, so i am not consumed with impotent anger at him? Thank you.
Ps this is not meant to be a goady post against those that voted leave, if you have a well thought out argument and honestly believe it, that's great.

Can you explain why leaving the EU will automatically lead to an erosion of workers’ rights?

Because pretty much all of the employment protections we have are because of the EU....

The Tories have been weak on employment rights. Do you remember Theresa may’s incoming speech about the “just about managing”? About having workers on company boards?
That all got watered down to zilch pretty damn quickly.

She’s a Tory and doesn’t care about workers.

@Dongdingdong if you don't believe MN posters in relation to a post Brexit world because we are all left wing, how about Michael Heseltine? The Michael Heseltine who served in Thatcher' cabinet.

"Or, as is much more likely, the Brexiteers will demand significant changes to reflect their own views – views that will appal and frighten much of the electorate when they realise the enormity of what is being done. In essence, Brexiteers want to dismantle much of what we regard as the underpinning of civilised life in the modern world."

Other Tories think they are bonkers, be very scared.

"Can you explain why leaving the EU will automatically lead to an erosion of workers’ rights?"

Read Britania Unchained, and look at its authors, read the things JRM says about reducing regulations, he isn't talking about standards of production, he's talking about labour regulations as they are the easiest to remove.