If sex is important to your wife you are doing damage to your marriage if you deny her sex.
I'll leave the issues of an open marriage to others as it just appears to be a straw man argument and I don't have time for that.
The emotional needs of your partner matter in a marriage. And her needs aren't open to negotiation. Her needs just are. The same applies to your needs. You can certainly discuss how the needs get met, but not if the need itself is valid.
It's not a straw man at all, but more importantly you missed the point - the suggestion of the open marriage negotiation item was to put the need in perspective.
I am not denying my wife anything... you aren't reading these posts very carefully... You have the situations quite mixed up I'm afraid.
And who on earth suggested that anyone declare someone's needs invalid?
Did I mis a post someplace? This is getting way off thread here... I have no idea where you are getting this stuff...