.....Ultron. Really. Let me, go back a bit, just to get this straight. The guy you idiots went back into the past to completely erase from the timestream, actually shattering time altogether in the process--the full repercussions of you still aren't even sure of yet....somehow still exists, and took over Earth 500 years into the future anyway.
Y'know what? Quit. This is clearly not a winnable battle. Either that, or Marvel could...oh, I don't know...stop spamming the same fucking villains so they don't seem like implacable singularity points who will exist regardless of what the heroes do to get rid of them.