It's a reference to Vermin Supreme who made a satirical bid for US president in multiple elections.

One of his main promises was to give every american a pony, and when asked about it he said something to the effect of "It won't require that many ponies, because I'll just kill most americans first"

I agree though that he's closer to a Farage, especially since he called himself a self-proclaimed fascist. His satire was in being such a bad candidate that it highlighted the general buffoonery of US elections.

So yeah, Binface is different because while he's still satirical, his satire is more in line with things people would generally want but taking them to an absurd degree. So I guess Vermin Supreme wasn't really that comparable...

He was referencing the platform of Vermin Supreme, who's a similar figure in the US.