Why does Atheism allow itself criticism of God without having a clue about Him?
Atheists don't believe in any gods, and therefore don't criticize them just as we don't criticize Santa Claus. He could lose a few pounds according to popular depictions of him (Him?), but I won't criticize him for it, because he doesn't exist.
Freedoms are defined as actions within God's Law. Underwise it is not freedoms, but crimina outlaw.
You are implying that our rights and freedoms come from some unseen god. Freedoms are not dependent on gods, who were never involved in their enumeration or enforcement. If God has always been around, why did it take so many centuries to obtain these rights? Where were they in the Middle Ages? Why weren't they in the Bible? Why do so many people still not have these rights? Why did they have to be enumerated by men, fought for by men, defended by men, enforced by men, interpreted by men, and amended by men? What part did a god play in any of that?
None. But Christians want to take credit for this achievement as well.
Just as Christianity has no claim to the rise of science as is often claimed, it gets no credit for the modern, liberal, secular, democratic state or its enumerated and guaranteed personal rights and freedoms.. Those are Enlightenment values that had to wait for the end of theocracy to manifest.
Check your Bible if you disagree. What you'll find there are commandments to submit - man to God, man to divinely appointed tyrant, wife to husbands, and slave to master. Want to avoid hell? Submit.
Faith is not enemy of Science nor of Scientific Knowledge, because word "Faith" (in Wikipedia references to peer-review sources) is defined as faithfulness to Knowledge.
No, faith is nothing more than unjustified belief, which is the enemy of reason. Faith is neither a virtue nor a path to truth. It's the willingness to believe that something is correct that you merely hope is correct.