Y'know, Jerry wouldn't have been Jerry without his flaws. All the choices we make, good and bad influence the person that we are which in turn influences the choices we make and so on. We are a combination of our light and dark, good and bad sides. Yin and Yang. The music and the band would have been diffterent if Jerry was different. Excuse him or not, it doesn't matter. That's who he was and this is the legacy that he left, the thing that we all love.
Besides, he's dead, and nothings gonna bring him back. The whole conversation of whether his choices were good or bad and what exactly contributed to his death and how he used his drugs is pointless.
Dunno if this makes much sense, just my 2 cents.
Goin' home, goin' home
By the waterside I will rest my bones
Listen to the river sing sweet songs
To rock my soul