Police and policing mechanisms bring to mind many forms of toxicity. In many ways, the visualizing of the term "police" interpellates the reader right away. The text is affective. Like a Jenny Holzer or Barbara Kruger piece, the observer is meant to read, engage, and/or question their own positionality in reference to the text (the text in this instance as with your other artifact is the image). I feel as though this response is indicative of the ways in which state, particularly the racist police state, is toxic/produces toxicity.
Aside from the immediate reaction to the simplicity of "police" written on a white background, I feel as though your description does a good job at illustrating the ways in which toxicity spreads. By situating anti-Mexican racism in anti-blackness the viewer is meant to understand how structures of violence are mended and changed to affect numerous populations.