Here's the two-part solution, which DU folk could not imagine, let alone execute:
1.) Ignore it when used. Say no more than, "Whatever."
2.) Get your fellow Snowflake-Progs to stop having hysterical hissy-fits and tantrums every time someone uses the word, "Trump." Burning the "@#$%^-hats" would be a wise idea, too.
Do those, and "Snowflake" will fall into disuse.