Snowflake vs Yam

Every snowflake is unique
They say –
Those People who say such things

Who am I to doubt?
And The People who hear such things
Those People say “Wow!”

“As is every yam”
A dear friend said to me
“No two yams are exactly the same”

And yet, The People who hear such things
Those People seem less than impressed
By this particular information

And The People who say such things about snowflakes
Those People, they ignore yams almost completely

What’s that about, then?