The West actually did not supply Ukraine the way Soviet Union did with Iraq. In fact, if the West supply Ukraine the way SU supplied Iraq back in 1991, Russia would most likely had already been beaten back by now.
You need to look at what the West had supplied Ukraine with vis-a-vis What Soviet Union did with Iraq.
Western Aid in Ukraine
136 M777 Artillery System
16 HIMARS
7 M270 MLRS
~20,000 Javelin Missile System
~5000 stinger Missile System
15 Caesar Mobile Artillery
10 Pzh2000 SPG
2 NASAM System
45 M109 SPG
~250 T-72M/T-72M1
~200 BMP-1
~100 M113
50 Bushmaster AFV
70 Krabs
40 BM-21 Grad
20 Mi-8/Mi-17
80 Mastiff
40 FV-107
30 FV-104
10,000 AT-4 Launcher
5500 NLAW Launcher
40 MRAP
500 Switchblade Drone
160 Phoenix Ghost Drone
Assorted Small Arms, Drones, Helmet and etc.
Soviet Supplies of Iraq
1000 T-72(A/M/M1)
72 Su-25
40 Mig-29
1000 BMP1
250 BMP2
1100 BM-21 Grad
300 SCUD-B
A combination of SA-2, SA-8 and SA-13.
Notice that the West did not deliver a hell lot of advance weapons to Ukraine, the most advance weapon in that list is HIMARS and Drones, MLRS and other SPG existed for more than 30 years. The West also did not supply Ukraine with Tank (Other than the 200 or so donated T-72), Aircraft and SAM. While SU supplies of Iraq are more comprehensive, it ranges from Tanks to Fighter Jets to Ballistic Missile.
