Everywhere has toxic people, honestly. Ffxiv is nothing special. Just block/mute and move on. I have left some catboy servers that are full of drama and nonsense. Best decision I ever made.
Some people will wish you the worst. They’re bullies, they just want you to feel as miserable as them. Meanwhile I have a lovely support group, a loving partner, I’m pursuing my dream for a Masters, and I got money in my pocket! What do they got? A comical amount of complaining.