The investment manager, who led the case against the government to prevent it triggering Article 50 without a parliamentary vote, predicted that a future Brexit deal would start to look like something “they didn’t vote for”.
Speaking to The Evidence-Based Investor, Ms Miller said referendums and elections around Europe in the next two years would affect the kind of Brexit deal available to the UK.
She said: “Other members will have their own domestic priorities rather than negotiating our exit but then at the same time, we’re going to have to come up with something that I think and I believe that the British public, as time goes on, will realise that perhaps they didn”t vote for.
“What does Brexit mean? It wasn”t as if we were running an election, there wasn”t a manifesto, people did not know what Brexit meant.
“And as time goes on I believe it will become more apparent that Brexit will be very damaging for us.”
Speaking about the Government’s appeal to the Supreme Court regarding the landmark High Court ruling, the campaigner remained confident of her case being upheld.
She said: “I’m not concerned at all because we don’t believe, my legal team and I, that the case is appealable and the 11 Supreme Court judges that are going to sit, which is going to be the first time in the history of the Supreme Court, are very unlikely to overturn the three judges.
“Because if you look at the black letter of the law of our case it”s very straightforward, only Parliament can grant rights and only Parliament can take them away, so we do not expect to lose this case.”
However, she admitted she would not seek to take the case to the European Court of Justice if the appeal is successful.
She said: “We will leave it at this stage… but I would sound a cautionary note for doing that because if they do trigger Article 50 without a debate in Parliament and without parliamentary intervention when it comes to an act, to reverse the 1972 act, they could be setting themselves up for legal cases in the future.”
The Supreme Court hearing is expected to begin on Monday, December 5.