My take on this: be confident in your long game. When people unfairly blame you for things that are not your fault, or think ill of you, they are either not understanding your long game, or they are opportunistically connecting a false set or dots to blame you for their failures. That set of dots will be seen as fraudulent in the long run as your good faith efforts pay off. If you reply to accusations immediately and comprehensively, instead of ignoring them or giving simple short replies, it shows that you don't trust your own long game. If the people blaming you now are working with you in good faith, they will realize they were wrong soon enough and respect you more for being steadfast and not getting excited about being blamed.