Gays have no higher propensity to lie than do other people.<quoted text>
Well technically it makes no difference if someone is born that way or chooses as the Bible doesn't state being homosexual is a sin but that engaging in homosexual sex is.
People are prone to all sorts of behavior. Some innate. Some learned. The Bible doesn't get into the "why".
But my point is, which I don't see how anyone could argue, is both are bigoted comments
"filthy gay liar"
"filthy Christian liar"
Christians have a very high propensity to prevarication.