A racist is someone by words and/or actions used against another either negatively or positively that differentiates that person based on their ethnicity, heritage, lineage, or genetic make up.
Note how I didn't use the word "racist" to define a racist (Kendi, the referenced source in the OP does--repeatedly). Using that word to define a racist is a logical fallacy in circular reasoning. That is, evince's argument (and Kendi's) is that someone is a racist because they say racist things. That means that whatever evince wants to claim is racist makes someone a racist. There is no attempt to specify what actually constitutes a racist statement. Instead, it's a case of I know it when I hear it (or see it).
Likewise, evince's claim that if you don't physically act against racism makes you racist. This too is wrong. Racism is an idea, a thought. It isn't a physical thing. You can't touch racism. You can't point to an object and say that object is racism. Sure, a physical object can have qualities that make it racist but the idea or thought that went into making that object is racism, not the object itself.
Thus, one can be anti-racist in thought even if they don't act. Failure to act can be attributed to other reasons such as fear of retribution. That is, someone may be anti-racist and not want to get into a physical altercation with another person that is spewing racist statements (as defined above). That doesn't make the person unwilling to enter a confrontation racist, that's an absurd proposition. It is another fallacy reducing the argument to the absurd.
An example of that would be to be non-racist / anti-racist you have to be willing to suffer personal injury or even death taking on a racist. Anything less and you too are a racist. That's what evince claims above.
Evince's argument is false. It uses a false definition, then uses more logical fallacies to try and force anyone accepting it into a straight jacket of actions to prove their acceptance of the original false definition, possibly at the risk of injury or death.
Ibram X. Kendi's book How to be an Anti-Racist is little more than a puerile exercise in academic fraud that is easily demolished when reason is applied to it. The man is an academic lightweight of no credibility based on the poor reasoning he has shown in his works and in person.
