As Faye said, the attack could be both misogynistic and racist. Things don't have to neatly fit into one category or the other.
As it stands, Asian women sex workers and the sexualization and fetishization of Asian women are real, existing social issues. When we look at this event with this cultural context in place, we can't ignore that race (along with whorephobia and misogyny) are part of the picture.
If it had been Eastern European women, I would (at least personally) still think race/ethnicity had to do with it. Eastern European women are also sexualized (the classic Russian mail-order bride looking for a green card narrative). No one is saying that white people can't be victims. White women are still women—no one is saying they don't deal with shit. 2 white people got killed in Atlanta.
I don't know you enough to call you a racist or a non-racist. I think racism is a spectrum; you aren't either-or, rather, some people have more racist beliefs than others.
No one is exempt from racist beliefs, myself included as a person of colour. I've had to confront my own problematic beliefs, and I ask everyone regardless of race to at least try to do the same.