Do you dislike Beethoven? He wrote a lot of stuff that still sounds very discordant.
Indeed.
I remember being a sixth grader raised on Classical Music, and attempting to play “Moonlight Sonata”. I was appalled by a chord that had a half step played together. I thought it was a misprint in the sheet music, but my teacher assured me that Beethoven wrote it that way!
I have his nine symphonies and can listen to them all day long.
Same for Mozart
Wagner
Vivaldi
Rossini
Verdi
And many, many others.