Shucks, I voted no immediately after reading the title and assuming the picks were the two Brooklyn 1sts instead of two non-Brooklyn 1sts as the OP specifies later. Edit the title please? "Jae+Terry+Amir & MEM+LAC 1sts for Blake", maybe?
Would vote yes now, knowing the terms.
Blake without giving up a Nets 1st enables us to get two more stars. Westbrook and a top 3 pick, or Westbrook and Butler, or two top 3 picks. Something like that. If used, and used wisely, the "leftover" assets would be a dynasty that could take the Warriors head on and maybe split the next eight Finals 5-3, 4-4, or 3-5, a la the 80's Lakers and Celtics.