I'll answer this again too just so you know that you are arguing stats and I am arguing baseball sense. I'm not some anti sabremetrics guy. I value them as tools but that doesn't mean I follow them blindly and without thought or question the validity. I understand that questioning their validity might require an advanced degree in math which I don't have so the only way I argue is common sense.
Because the Sox lead the league in singles they are not as bad at getting on base as someone might think. I think we can all agree a single is better than a walk without me explaining why.
If I blindly look at the team OBP leaders I see the Sox are at 13 out of 30 at .315 so not even close to worst in the league. If I then look at each team's OBP there are only 10 teams above the White Sox. There are 3 other teams with the same .315 team OBP as the Sox ( Braves Mariners and Red Sox.) There are 3 other teams with a team OBP of .314 (Brewers, Guardians and Phillies). Lot's of good teams with the same or nearly the same OBP as the Sox.
If I look at team Slugging Percentage the Sox drop down to 18th at .385 (tied with the Guardians and Mariners)
If I check team HR's only 2 teams are worse then the White Sox (Guardians and Tigers). Team ISO is 29th .126 only Tigers worse.
For fielding I use the Fielding Bible which places the Sox 26th . They use team defensive runs saved as the measuring stick ,http://www.fieldingbible.com/TeamDefensiveRunsSaved
The only worse teams are Phillies, Royals, Reds, Giants and Nationals. 2 positions in particular hurt the Sox defensively SS ( -11) and RF (-11) where they are - 22 DRS. Since the Sox as a team are -19 that means the rest of the team positions players are not bad except for a -6 for the pitchers. They get an 8 over all on positioning in shifts and non shifts. The only other thing that sticks out is DRS saved by shifts . It appears the Sox are the 2nd worst with the Guardians being slightly worse. The Sox are a 6 while many teams are over 10 with the top team at 27. In non shifts the Sox are tied for 9th with a 2.
UZR has the Sox dead last by a large margin.
Basically its defense and ISO//lack of HR's hurting the Sox the most if you had to pick just 2 things they are the worst or near worst at. Team wRC+ is 100 which is 15th