Irresistible grace does not teach that ppl can not resist the Holy Spirit, but that they will not resist it all the way unto death. That at the right time, God will effectually draw them to Himself.
When you see the Greek word used for 'draw', you see it means this: to drag, to draw, haul, drew. The Greek word is ἑλκύω 'helkuo. So when the word 'draw' is used, it is used in a way to mean effectiveness in doing the drawing. In John 18:10 John wrote
Simon Peter then, having a sword, drew it and struck the high priest’s slave, and cut off his right ear; and the slave’s name was Malchus. Now, 'drew' in that verse is helkuo, which means when Peter drew his sword, the sword was effectually drawn from its scabbard. Then John also wrote in John 21:11
Simon Peter went up and drew the net to land, full of large fish, a hundred and fifty-three; and although there were so many, the net was not torn. So, when Peter drew(helkuo) the net, he effectually drew(dragged) it to shore. That is what helkuo means. It is the same word used in John 12:32 when John quoted the Christ saying
"And I, if I am lifted up from the earth, will draw all men to Myself.” So, if the Christ is doing helkuo to all mankind w/o exception, then all mankind w/o exception is being effectually drawn(dragged) to Him, therefore, He is saving all mankind w/o exception. That is why we aver that John 12:32 does not teach Him drawing all mankind w/o exception, because helkuo teaches those drawn will come to Him. And we both know that not all mankind w/o exception will be saved.