There is no amount of charity or anti-poverty stuff that can make up for being a billionaire.

He does it in a way that no real world billionaire has ever done or will ever do. Its not reasonable to hold real world standards because he doesnt do milquetoast philinathropy lol. Its a completly different thing that you cant analyze the way you do real world billionaires.

If we bring the whole Gotham, we bring Poison Ivy, the real hero of the setting who Batman opposes.

Poison Ivy is a fairly minor villain, who noteably is actually not purely a hero because she's done some pretty awful things. I know good leftists who actually hate Ivy, I forget the full reasoning but I read a good essay on it once. Again, you're subtracting nuance to a fictional character so you can do the surface level buzzword takes every leftist does lol.

In modern portrayals Ivy is an anti-hero usually, and Batman hasnt fought against her in like over a decade.