We can always vote for a new government, but we will probably never get the chance to rejoin the EU again.
We have such a favourable membership. We only pay 0.1% of our GDP compared with other members who pay much more... We also didn't have to sign Schengen.
It seems a pointless thing to leave, we will still have to pay to trade but will get absolutely no say in the laws that govern it.
I haven't yet heard a good (or accurate!) reason for voting out... 