Your sampling methodology leaves much to be desired.
Sarcastically calling people, especially young naive people, "snowflake" as a rejection of their projection of uniqueness or specialness has been around for decades. It's applied without sexual or gender connotations.
Example of alternate declarative form from Fight Club, "Listen up, maggots. You are not special. You are not a beautiful or unique snowflake. You're the same decaying organic matter as everything else."