Should MLS pull out of Open Cup?

To me, it's obvious that the MLS should not pull out of Open Cup. But I was surprised to see others disagree. So I wanted to do a poll to get a clear picture.

(I feel it is sacrilegious to the US soccer community for MLS to pull out. But hey that's just me. I feel all pro sports would be better off with an "open" cup... where amateurs can test themselves against pros. In golf anyone can become a pro and compete in PGA tournaments if they are simply good enough and qualify. This is true...

Should MLS pull out of Open Cup?