Polanski remains clear that his party wants to "tax multi-millionaires and billionaires" in order to create a fairer society.
"This is about redistributing the excess wealth that is happening right across the South East and England and Wales, and saying, let's put that money back into our communities," he said.
The leader discussed a myriad of other issues, including defence and the party's general election prospects.
When asked whether the former Conservative voters now with the Green Party would support his ambition for the UK to leave NATO, Polanski stressed that the UK needs "a different approach to defence".
He said: "What I'm talking about there is recognising we can't be in hock to Donald Trump.
"What I want to do is have a conversation about what an alternative alliance looks like with our European neighbours."
This would not "necessarily" mean spending more on defence, Mr Polanski added.
Turning attention to the next general election, the Green leader has previously said he thinks his party can win 30-40 seats.
When it come to the South East he says other seats in Brighton will be "first on the list", with the party hopeful of adding to the Brighton Pavilion it has held since 2010.
Polanski said: "I think the fact that Sian Berry has such an incredible success, in Brighton Pavilion shows that a lot of the seats around there suddenly get into play.
"That doesn't rule out other seats too."