You hold rather a narrow definition of promoting grumpy.  
If you are suggesting that Islam presents no concerns about equality of gender and sexual preference, then I'd be interested to hear your arguments in support of that hypothesis  
But if you are simply ignoring the obvious impact of your decisions about the values you choose to support, then indeed, you really are a grumpy Lefty. 
I have to say the whole notion of the Left supporting freedom strikes me as a bit rich.  Beyond the realm of the freedom to pick my pocket to serve goals the Left can neither afford nor manage competently itself, the Left tends toward heavy control of everything, and is most often frightened of freedom.