Everything with Deckard was awful. I also felt the Rachael clone was both a "fanservice" moment and at the same time terribly disrespectful to the character of Rachael. I hated it, a "we did this with CGI because we can" moment.

In my opinion, Deckard and Rachael's story was over at the end of the first film. Let them have their moment, be happy for an instant, and forget them.

If the sequel was even necessary at all, it should have moved on without sullying old characters.