A simple letter, asking for the thoughts and opinions on the ongoing efforts to exterminate the white race, might make all the difference. Send letters to the white house, emails, asking for answers, providing sources that prove it without a doubt. Cite the UN’s definition of genocide, which includes demographic replacement if I remember correctly.
Especially good examples are academia, politicians from around the world, organizations both great and small, even business leaders. Use every source you have, make pictures that can be printed out and sent in an envelope. Hell, send them a box of evidence if you can! Politely demand an answer to this, and Trump or the Press Corp might actually make a statement on it if they get enough physical mail!
A better idea would be to send these letters to the politicians running for the primary in your state. They’re a lot more likely to respond.