Fair enough.
Personally I think that his actions and words provide so much and so ample proof against the man that misportraying a picture of him adds nothing to the proof against him whilst introducing doubt on the character of the critics that would use forms of deceit such as that misportraying.
In other words, it's a net loss rather than a net gain.
Further, as a Principle I'm just against all forms of misportrayal of a person and situation, no matter what the political color of those involved - if I was only against it when it was done to attack people I dislike, then it wouldn't be a Principle, it would just be me doing some performative-Morality.