Poker doesn't make you anti-social , neither it's for these kind of people .
Some people can dedicate only few hours weekly on poker cause their work is very demanding so they can play specific games I think , others a few hours the weekdays or Saturday/Sunday , others can play more days cause their business and family affairs allows them and gives them more freedom . So poker is entertainment , it doesn't consume allthe time , everyone chooses the games he likes according to the time he wants and he is able to dedicate to , playing to make money or have fun . Everyone plays whatever suits him best when he wants , not everyone plays tournaments everyday all day .
He can play alone , he can play together with friends , he can play in an online stream which do many nowadays to socialize thegame evenmore . Moreover with poker you play with people , you can talk to them at the tables , there are poker forums to get along with them and learn how to become a better player . I don't understand the accusation of antisocial , at least for the great majority of poker players . Now , if sb is actually antisocial , poker won't make him more antisocial , but it brings him in contact with players and people , so he is being socialized more imho .