It’s not an either/or question. You can ride for environmental reasons and enjoy the ride at the same time. The world is in color, why boil everything down to black and white decisions?
I’m retired after 39 years of working and I kept track of how much gasoline and carbon dioxide I didn’t use or spew into the air (7000 gallons and 100 tons). That didn’t mean I didn’t find a personal benefit from riding.