Poker is the best game , you can earn money , also if you are good, enormous amounts of money , while you have fun and you are being entertained spending some hours on sth you like . Many have a job and at the same time they play this game , others pros use this game for a living .
There are other kinds of entertainment , watch a movie or a sport like other members said , non productive some people might say , but help most persons have a good time . Many things might not seem productive in a materialistic way , but without these people's life would be worse , people would be less productive in their real life job being less interested with less fun -entertainment or with less chances to make extra money to their monthly salary or retirement payment by doing sth they love or they have knoledge about it . And poker is entertainment and can be $$$$$ very profitable !!!!
If sb feels tediousness with poker he can try a hobby , feels non productive ?? then help others voluntarily or do sth else to keep him happy and complete , or stop playing poker , cause if you don't feel complete/nice with sth , why concern yourself about it , play it , etc .
But if you look around millions and millions of people try things ''non productive '' in a conservative way of thinking , for example play video games on twitch or alone , etc to have fun with sth that might earn them money if they are good at it , a lot of money , is it bad ?? NO . All these conservative philosophical questions are out of date