Apple aren't here, so its pointless directing any comments at them here. Sheesh.
Apple never said yout need any of the additional email addresses they provide. If you don't want them, don't use them - they are entirely OPTIONAL.
Continue using the one you always have and ignore the new one(s) if you don't want them. Clearly Apple provides additional email domains for those people who want a choice, not people like you who are content with their existing address.
You may have missed it, the the service from Apple is now called "iCloud", so it makes sense to offer @icloud.com addresses to account holders. If you don't want it, don't use it.