I don;t think it's possible for most people to change, let alone people who use EA tactics.
IME, people EA because that's how they were taught, as children, to make sure that the people they love don't leave them. most have a massive fear of being abandoned so they will do anything, even hurt someone dreadfully, in order to keep them from leaving.
my exH said to my face that he had "tried to break my legs to keep me from running away" - metaphorically speaking. he never hit me but he could be vicious and broke me down over many years.
i think the vast majority of EA men (and women) have no idea, in the moment, what they are doing - they are doing what comes naturally to them. what they learned as children and what's worked for them so far.
possibly some can gain insight into their behaviour when they look back on its effects. but, even with that insight, maybe 1 in a 10,000 can make a significant change to their style of being in a rs.
i had to leave my dh for his own good. if i had stayed he would never have got enough distance from his behaviour to see it for what it was. even so, not sure he still retains the insights he had at the time that i left. i expect he's reverted to type and will never change.