Libertarianism is the only political philosophy that SHOULD line up with Christianity, but it is not the case. There is a vile strain of Christianity invading the land. It is more the corporate/militarist/solipsist C-Street House flavor of Christianity. It is a dominionist philosophy that uses stealth, while paying homage to liberty by merely speaking the words correctly. It is insidious and it is exclusionary of all other faiths or lack of faiths, and even of many Christian sects that don't agree with the dominionist/reconstructionist screed. It's adherents are the powerful and wannabe powerful who, when they fall, always seem to believe they are some version of Kind David, who was beloved of God even though he had his future wife's husband sent off to die. They believe they have power because Gop wants them to have power, and nothing they do in this world has any effect on the esteem God apparently has for them.
I have known true Christians in my time. These modern day fakers are not truly Christians. They are something else altogether.