Can I really change my long-distance alcoholic boyfriend’s behavior?

I'm (F30) in a long-distance relationship for over a year now. My boyfriend (M32) is a very loyal man, and it's what I like the most about him, but he's alcoholic. He drinks and smokes every day. I know he won't listen to me when I tell him to try and quit drinking. It might be because he's lonely and he's been single for a long time and I'm in another continent so being with me doesn't really help. He told me that I make him happier and that he wants me to be around all the time. The thing is he's very, very vulgar. He cusses all the time even though I told him I don't like it but he would tell me it's just how he is. Two nights ago we were on a call and he called me a slur while he was super intoxicated. I simply hung up. He kept calling back and sending pleading emojis, telling me that he's sorry and how I know he's vulgar, and asking me to call him something worse. I'm really tired of his behavior and I want to change him for the better. Is this possible? I haven't talked to him ever since.
Can I really change my long-distance alcoholic boyfriend’s behavior?
Can I really change my long-distance alcoholic boyfriend’s behavior?
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