Not sure who this is directed at, but I agree. Sex according to God's design is not evil by any means. It's good and it serves a holy purpose. However, we know from Holy Scriptures that in the beginning God instituted marriage between man and woman. But we also know that in Christ there is no male or female (that's not to say that in our current age we should all live celibate), and we will not be taken or given in marriage in the resurrection. In other words, I think when considering the restoration of all things, I don't think it will be a complete revert to Eden, but rather that all things are made new in a way that we don't understand, because it's not fully revealed to us, and Eden, or, the New Jerusalem is brought forth through that.
In the words of our Lord: "Behold, I am making all things new."