In my blog at the Times of Israel I mischaracterized IfNotNow.
IfNotNow takes no position on Zionism or a Jewish state. Not taking a position is not support. The best that one can say about IfNotNow is that it is neutral, but that doesn’t put it in the Zionist camp.
Rabbi John Rosove's Blog 
Thank you, John, for your careful explanations and thoughtful questions—and your clarification of IfNotNow. I’m with you. I recall that you once suggested that we think of Israel as our families where, honestly, “there can be no love without criticism and no criticism without love.”