#1- The giants might have the 4th guy drafted as their #1 QB. There is a wide range of opinions between Maye, Daniels, and apparently McCarthy as to who will be the better pick.Wow, I know people are essentialy saying that they don't want to trade down at all unless it's for a preposterous return... but this would be a preposterous return.
Per the Draftek trade value chart, the difference between #4 and #6 is 200 points. The Giants' 3rd rounder, #70, is worth 240... already a premium that teams tend to give up for a QB. A 2025 1st is worth an additional 590 points (based on the #32 pick), which is completely unrealistic.
This is a little more realistic, but the Giants' 2nd round pick at #47 is worth 430 points - a 115% premium over the 200 points in value the Cardinals would be giving up. Maybe reasonable if the Cardinals gave back their late 3rd (140) or 4th (86).
But then as @kerouac9 noted, it's questionable whether the Giants would even want the 4th QB off the board, let alone be willing to give up a "massive haul" for a guy who might just fall to them at #6 anyway.
#2- If the Giants wouldnt even be willing to give up #47 to move up...then they can pound sand. They are the ones initiating the move and targeting a specific player. They either pay more...and probably a lot more....than the chart says they should, or they get no deal. No one is moving out of the top 5 for peanuts.