Is Modern Jazz an Oxymoron?

I am a huge jazz fan and 90% of my listening time is listening to instrumental jazz artists from the classic jazz era of 1950's to 1970's. Excluding jazz singers and a few more recent jazz artist who play classic jazz style I can't stand modern jazz.

My question to jazz fans is if it is my limitation or is this a common thing amongst classic jazz fans? Or did you finally come around and learned to appreciate modern jazz? If so which artists?