Since when does a leftist WANT to have a clear cut understanding of the meaning of words?
It never serves their purpose to have a fixed set of rules that everyone follows.
They don’t. As you posted, they’ve been doing it for years to suit their various agendas.
You can’t have a Country that is built on contracts when you can change the meanings of words, well, one that will survive anyway.
But hey, that’s part of their agenda too.