Then speak to an NPC just inside the door and turn it off.
The debuff is optional, if you wish to continue without it then you can.

You've said that at least 2 times now, both to people that were saying it's too soon. Turning it off has nothing to do with what we're trying to say. The point is, it's a month (or, I guess by the time it actually goes out) is a few weeks too early. Yes, we could turn it off, but that's beside the point and a cop-out response. There has been 2 major holidays within 2 weeks during the time it's been out that takes people away reducing how much these kind of players can play the game. 2 months for groups that only raid, maybe, 3 times a week isn't enough time for many to progress. We aren't saying don't nerf them at all. We're just saying, it's feels, and in our prospective, it's too soon. Give it a few more weeks. That's all we're saying.

The power to give it a few more weeks is entirely in your hands! Replying that the nerf is totally optional is not at all a cop-out response; it is precisely on point. As you've noted, your guild is in perfect agreement that you do not want or need the nerf yet. Then don't use it, it's that simple. To be honest, I don't think you are in the target demographic for the nerf. As has been stated numerous times, the nerf is aimed squarely at those guilds who feel they have hit a roadblock and cannot progress further without assistance.

I have yet to read a cogent comment supporting the position that it is too soon for this nerf and why the ability to eliminate the nerf completely is unacceptable. Please help me to understand your objections.

You haven't read a SINGLE cogent comment? I thought he was being pretty clear. In any case here are mine:

1) Despite what others are reading into what he's saying, he's only speaking for himself not for his whole group. And that's the major problem with the "you can always turn it off" argument and why it IS a cop-out response: a person's distaste for the buff is unlikely to be shared by his groupmates. Unless you happen to be in a guild where everyone agrees with your POV or you just rule your guild with an iron fist, you're stuck in the unenviable position of trying to convince 9/24 players that it would be better if you delayed your progression. Good luck.

2) Downing the content with a slight buff can be a bit... rankling. Imagine you're a kid who's been saving up several months to buy Pandaland, doing odd jobs around the neighborhood, and then a few days before it drops (hopefully sooner rather than later), your mom says she'll just buy it for you (now go do your damn homework). Wouldn't you feel a bit bad? You're not going to say no because hey, it's free money, but you still feel like you're wimping out a bit. That's what this buff is like, and why I really hope we finish Madness before, rather than after the buff.

I still don't understand why you can't turn it off.
You use the word "Our", so this is the opinion of your whole raid group? Then surely you won't have a problem with turning it off, because you all agree!
The nerf is optional!

Your /whole group/ feels that the nerfs come to soon? Turn it off.
Downing the content with a buff is rankling? Turn it off.

The problem indeed comes if your entire group does not agree, but you phrased all of your responses in a way that implies that this is not an issue. If this is only your opinion, maybe it'd be better to use the word "my" rather than "we" and "our" as you have been. If this is not solely your opinion then there is literally no reason for you to leave the debuff on, and you have yet to present me with one.

I don't see why the fact that you can turn it off is "beside the point" at all. You haven't mentioned trying to compete with anyone, only your own personal sense of group satisfaction. And if that would be increased by not having a debuff, remove the debuff.