Homilies & slogans and 'folk wisdom' are widely 'accepted'. When they are "deemed 'valid' by a group", creeping subjectivity waters down the whole concept of **factually & logically valid & objectively true** that we all hope to find.

I can't fight endemic semantic slipperiness all by myself...but I CAN make the point to those I debate with here...whether they all 'get' it or not.