MJ is wired that way. He is cruel by birth. Do you think just because a girl refused your advances, you go ahead and destroy her and her family? MJ is the personification of toxic masculinity and misogyny. Period. Maya wanting to destroy him and his family is COMPLETELY justified.
What I have a problem with is Maya using innocent people like Vikram (IF he is innocent, that is) who are no way connected to the Roys in her quest for revenge. That's all
Now you went from Rishi's murder can not be justified to everything Maya does to Roy family is COMPLETELY justified. There's no room for discussion if you think killing innocents in justified