LOL, your core was completely grasping at straws. Robinson, yeah, hopefully he doesn't bolt after his contract is up next year. Montgomery, definitely. Goldman, probably. Leno, Jackson, Fuller, Mack, Whitehair, all at least 30 by that time (30 is included in 30+ in case you were struggling with that). Who knows if they'll still be playing at a high level, especially Fuller & Jackson. You can already see the age in Amukamara, and he's only 30. Smith, maybe. Isn't Kwiatkowski already taking snaps from him? The rest you included haven't proven to be core players, which makes it laughable. And I see there's no QB on your list. Your grasping at OLman and WRs that have proven nothing to bolster to the offensive list.
And we're talking a MINIMUM of three years, which is a long time in football. Most likely, since the Bears whiffed so bad in that 2017 draft, it would take longer. Unless they somehow find a QB in that time. People aren't going to forget that. The Cubs won the WS in 2016, but people didn't forget the failures prior just because of the one win. I really don't know how to explain it to you any simpler. The only way that draft will be forgiven is if Trubisky flips the switch, Mahomes/Watson completely flop as well, or the Bears become a dynasty almost immediately after Mitch is gone. That's it. Other than that, it's a draft that, even with your 3 year time frame (which remember is a MINIMUM), set the franchise back at least 5-6 years.