Private jet causes Southwest to abort landing at Midway

Private jet causes Southwest to abort landing at Midway. Crossing runway while Southwest was landing.

At 17:10
https://archive.liveatc.net/kmdw/KMDW-Gnd1-Feb-25-2025-1430Z.mp3

The controller clearly instructs them to hold short of 31C. Pilot completly fumbles the read back. Controller corrects them, pilot acknowledges. Yet they still fuck up

Tower frequency (at 18:00):
https://archive.liveatc.net/kmdw/KMDW-Twr1-Feb-25-2025-1430Z.mp3