And that Cassandra will be ignored too. It's the role of "a cassandra" to be ignored, like it's one of society operating rules. People who tend to be good at being a cassandra learn very fast to stop voicing their opinions.
There are modern version of Cassandra. They take all kinds of possible positions and hedge those positions depending on context and then remind the others that "I told you so".
Exactly, and they are disliked too. Eating by snakes is not used anymore, but most people interacting with modern cassandras wish that this practice would return.