It's important to acknowledge your part of a problem. Ignoring toxic tendencies at work makes you complicit. Unless you're willing to file an official complaint, you will have to accept the blame for professional failures. While it suits your purposes to work for an unobservant or incompetent manager, this will eventually result in a job loss. Be honest when your employer asks what you think of this supervisor. If you're unwilling to get anyone in trouble, start looking for a healthier place to work.
Call one of the team of truly gifted readers on *0906 539 1662 (150p per minute + Phone Providers access charge, 18+) or 0207 111 6154 (Credit/Debit Card payments) to hear why you shouldn't tell an indecisive person exactly what you think of them. An angry outburst will undermine your reputation. A long-term moneymaking opportunity is beckoning.