First thing's first "capitalism and democracy are not synonymous". That's a line by Immortal Technique from the amazing song -- Leaving the Past.
https://www.youtube.com/watch?v=9Y4r3aFMxdU
A democratic society can practice communism. To be honest I think a capitalist system with some socialist concepts mixed in works best -- Canada does this the best, but they're still not perfect. I feel citizens' tax dollars should go towards defense, amenities, social security, free healthcare, and free higher education.
"On my business card I am a corporate president. In my mind I am a game developer. But in my heart I am a gamer." - Satoru Iwata