By Kiki McDonough Business optimism is plunging and no wonder. With all the doom and gloom, has Labour forgotten its mission of growth? Asks Kiki McDonough Business confidence plunged last month, according to the Institute of Directors’ latest closely-watched survey. Optimism in the economic outlook fell to its lowest level since the Liz Truss debacle of 2022, with the index dropping to -38 in September, down from -12 in August. I can’t say I’m surprised. The entire business community is on hold until this month’s Budget is out of the way. While I understand the desire to apportion blame where…