Doubleplusgood!
I’m a big fan of the idea of words meaning what people believe they mean, although the kind of nuspeak that political correctness tries to enforce upon us, and this redefinition of atheism certainly imitates, certainly tries to use language to enforce a particular mode of thinking, I believe, by removing the ability to express certain meanings from terms which they work reasonably well in representing
If atheism essentially means agnosticism, then you need a new term for all those like yourself who vehemently disbelieve in the existence of God… although, as I say, this redefinition of atheism (and it is a redefinition in a contemporary context) is nothing but a calculated attempt to redetermine agnostics to appear to support what is a far more extreme position than they actually hold…
Why bother? Oh yeah - because atheists want to increase the party faithful
If atheism is the new agnosticism, then I suppose it’s not clear whether or not many people actually disbelieve in God or not - unless they define themselves as, say, antitheists.
Which would reduce the number of people who clearly believe there is not a God to being an even smaller minority!