 Hayward has always repudiated the errors in his thesis, saying that they were the result of inadequate scholarly preparation for such a complex topic, but Holocaust deniers initially cited the thesis as evidence of academic support for their positions.In 2000, Holocaust denier David Irving praised Hayward's work as a "landmark in the turning of the tide in the favour of historical revisionism".Despite these issues, Hayward clearly upholds the sound and accepted scholarly assessment of the Holocaust.