The Labour leader's message is a smart way to turn working class voters off Farage.
After foolishly boasting that victory in the Newark by-election would force David Cameron to resign, the Ukip leader marched his troops back down the hill.
If Farage chooses to stand, his party could have a genuine chance of winning a Westminster seat for the first time.
A strong performance by Farage's party could signal to Scotland that England may vote to leave the EU in a future in/out referendum.
A senior party source rejects Farage's suggestion that Miliband would be forced to guarantee a vote.
But Ukip is betting on a late surge.
The party now favours strict limits on zero-hour contracts, the abolition of the bedroom tax and progressive taxation.
The party's new campaign is designed to win votes by whipping up animosity against foreigners living and working and contributing to this country.
The party attacked "privately educated" Times journalists. But its leader, treasurer, a third of its MEPs and all of its peers were similary well-schooled.