scarmig brings up some excellent points.
I am not an atheist nor would I associate myself with any particular religion, but the question of the thread is "why/or is any *religion* opposed to the freedom pov".
An atheist "religion" can be used to establish all manner of "moral relativism", "survival of the fittest", etc. The result is that a significant subset of atheists worship government as the solution to mans problems. The atheist view point itself does not necessarily imply anti-liberty, but individuals could adopt an anti-liberty world view without violating the atheist creed "there is no god".
Other major religions universally support "government enforced justice". If it were not so, then there would be an active civil war between people of such a religion and their government. Maybe you could claim that they preach "no not resist an evil man when he asks for your coat"...
Unless you are willing to disregard the bible and the old/new testaments, then you must accept that:
A) God chooses to put his people under despotic rule (Egypt, Babylon, etc)

It is God's will for his people to remain under despotic rule (and a sin for them to fight back, see when they were captives of Babylon).
C) God delegates his authority to be exercised by "kings" (David, Saul, etc)
D) David was a man after "God's own heart", yet was a king who placed heavy taxes and had no moral issue with "being a king".
E) God gave King Solomon supernatural wisdom, yet King Solomon did not establish free-market anarch-o-capitalism or even work toward that end.
I could go on and on, but it appears that one must reject christianity, Judaism, or islam in order to adopt a pro-liberty point of view. For a long time I could use bible verses to conclude the ZAP rule, prove that governments are under the authority of the devil, that God did not approve of the idea of a king (warned the Jews against it), etc. But a couple of verses, like Romans 13, completely contradict EVERYTHING ELSE. Thus, the bible must be fallible or tainted by pro-authoritarian influences such as the emperor of Rome.
Further proof regarding christianity being anti-freedom is the fact that almost ALL followers and pastors, after studying it their whole life, remain firm in their belief that the powers that be are a legitimate authority created by God and to be obeyed as if they were God, "unless they ask you to worship another god or forbid you from worshiping Jesus".
Regarding Johnson's post in defense of Christianity... it reads as something I would have written a few years ago. Some points to consider:
1) The great majority of people today are greatly deceived by all manner of lies and manipulation
2) A great number of these people hold their painfully false beliefs so strongly they would likely die for them
3) An event like 9-11 will likely go down in the history books according to the "official story", people die for that story every day.
4) The character of good people is often abused to give legitimacy to bad ideas.
Regarding prophecies, all it requires is a little bit of "legend" and everyone believes that they "gambled for his clothing" or any other prophecy was fulfilled. Thus, Jesus did not have to "arrange for it to happen". People desperate for hope will believe and embellish any such story. It would not even be very hard to get all of those "independent" testimonies to "agree". People are sheep and always have been. Besides, hand selecting a subset of books that agree from a super-set of books that do not agree and then claiming that "divine intervention" would be necessary to get the remaining subset to agree is foolish and would be like only allowing testimony from people whom agree with you and calling everyone else a liar. Then claiming that the remaining "democratically selected testimony" is the "word of God" is a nice touch. I never trust anything "democratically selected" by a bunch of sheep!
All of that said, I cannot disprove the testimony. I have concluded that if "all are liable" including those on a remote island who have never heard the "gospel", then the bible and gospel are completely irrelevant. Considering the dangers of blindly following a book that others likely manipulated to support their "power structures", I would much rather trust my salvation to my own observations of God, my conscience, and natures testimony than trust anyone else to tell me "what God says". God can speak to me directly, or not at all.
For all of your faith, you still risk losing everything because not all who call "Lord, Lord" will enter the kingdom of heaven. We all risk believing the wrong thing and facing eternity in hell. Believing you are right and others are wrong may help you sleep better at night, but it does not change the reality that you may still be wrong. I doubt God would even honor "believing just in case" as a real belief anyway so arguing with an atheist that "if I'm right you are screwed, and if you are right then we are both dust" is totally missing the nature and point of faith. I use to argue that way, but not any more.