Without knowing the details of the trade I’d say do it, but of course those trade details are important to this decision. Not going to happen though because any Vikings trade of Jefferson would be to move up to the top of the draft to select a top 2 QB.
I'd trade Nico, this year's 2nd and next year's 4th for Justin Jefferson. Dude is a baller and has almost averaged 100 catches a year in 4 years. He's a few months younger than Nico and didn't miss any time until last year. Stroud and Jefferson would be an iconic combo! WIth Tank, oh man we'd have some fireworks games.