That's funny! She obviously doesn't 'get' Star Trek and seems to think that all this is new to the franchise. The Star Trek world is and always has been, one of the most positive views of a possible future. This is quite unlike most Sci-Fi, which tends towards a very bleak future.
And yes, Star Trek is unashamedly liberal in its outlook. It's anti-capitalist, anti-religion and anti-bigotry. I'm surprised this stupid woman bothered to go and see it in the first place.
I shall enjoy pointing this item out to Sharlene as she'll really get a kick out of the stupidity.