Mike Hookem announced he was quitting as emissary whip in a European Parliament after arch whip, Stuart Agnew, announced his support for Anne Marie Waters.
Ms Waters has called Islam “evil” and set adult a Sharia Watch vigour group.
She is one of 11 possibilities who has been privileged to run in a care competition by a UKIP inhabitant executive committee.
Mr Hookem pronounced he was not prepared to “turn a blind eye” to extremism.
In a statement, he said: “I strongly remonstrate with a views Ms Waters and Mr Agnew foster and we would like to put as most stretch between me and them as possible.
“If we were to continue in my position of emissary whip, we would be seen as ancillary or during a really slightest branch a blind eye to impassioned views and this is not something we am prepared to do.
“I am not a extremist and have never campaigned on competition issues. While we do trust in tranquil immigration, this position is about ‘space rather than race’; and we am not prepared to support someone who seeks to singular out a territory of a multitude simply due to their eremite beliefs.”
Mr Hookem quiescent after a party’s emissary personality Peter Whittle shielded Ms Waters’ right to mount as a candidate.
Mr Whittle, who is also using for leadership, told a BBC Radio 4 Today programme: “The whole thing was finished really rigorously.
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“There was a vetting process. We all had to go by it and if we all get by that afterwards we positively have a right to stand. That means Anne Marie should be means to stand.”
Mr Hookem pronounced he was uneasy by comments by Mr Agnew that he “looks brazen to revelation his grandchildren in a destiny how he helped in a quarrel opposite Muslims”, and would keep a scrapbook of communications from those who disagreed.
In anxiety to his abdication letter, he said: “Let Agnew supplement this to his scrapbook!”
The celebration has been divided by Ms Waters’ candidacy with some members melancholy to renounce and former personality Nigel Farage has warned UKIP will be “finished” if it became an anti-Islam party.
Mr Hookem told Sky News that UKIP had a process on Islam that did not go down good on a doorstep during a final election.
He said: “You can't conflict one territory of society. We are opposite mass immigration, we are articulate about jobs and people holding a jobs of British people.
“If we are to be taken severely as a domestic party, we need to be articulate about education, jobs, a NHS. We’re not a celebration about religion.”
He pronounced he suspicion Ms Waters’ candidacy would order a party. “I consider it will emanate a lot of divisions, a lot of my colleagues are not happy with this. It was a wrong decision.”2017-08-12