I generally don't like much of what the EU has turned out to be (especially when compared to how it promised and had the possibility to be) but unless the UK enshrines in law -a superior law, or even better, a constitution- a lot of the labour, social and other protections that are EU regulations or have been indirect consequences of EU membership, pulling out means those regulations are no longer in effect and the parliamentary dictatorhip means that they can do whatever they like. It would be, actually, several steps backwards in that respect.
And that is why I consider it a moral obligation to vote to remain in the EU, whatever its problems.