gay = evil and/or chaotic?
In 99% of societies, yes. Homosexuality was not accepted.
necromancy in PF is ALWAYS evil, t
Necromancy in PF is similar to D&D ie - divided in white/gray/black. Expelling evil spirits, heavling and so on are examples of "white necromancy". Finger of Death is "gray" and reanimating the dead is always "black". IMO necromancers needs to be either, chaotic OR evil.
"In one of the foundations for CoDzilla, wizards and sorcerers have been traditionally restricted to gray and black necromancy, whilst clerics have had access to white, gray and black, plus innate class features allowing them to manipulate/control undead." source > https://1d4chan.org/wiki/Necromancer
Animate dead brings evil into the world and corrupts the caster soul with evil energies. But "white" necromancy is not necessary evil. Casting death to the undead would't corrupt your PC.
Okay then, imagine someone animating skeletons to be able to save children from a burning building, and then releasing them back to the boneyard? nope, evil as fuck.