Most of pop culture leans left, period.
Most conservatives have learned to tune it out. As I stated upthread, simply creating a fictional utopia and proclaiming "Because socialism!" hardly challenges any thinking conservative in the slightest.
J.R.R. Tolkien stated that his writings were "primarily theological", and certainly religious fans of his work can find allegories of the authors' conservative Catholic outlook, such as the immortal elves being able to survive on the Elvish waybread Lembas, which translates into the same root word as used for Eucharist.
But just like his fans who are not Catholic can completely enjoy the Lord of the Rings, folks who are not leftist in their politics are perfectly capable of enjoying Star Trek.
In both cases, after all, they are fictional fantasies. Any part that a person disagrees with hardly constitute a threat to their belief systems.