Read my post again - I meant that the fact that Christ's birth is commemorated (not the actual date, of course, but a symbolic date) in no way serves as actual evidence that he was resurrected.
Nice try, but it's yet another emotional appeal. Still hardly evidence.
You are now setting an impossible standard. Based on your standard, there was no Jewish holocost, Abraham Lincoln was never the president of the United States, etc.
Indirect and circumstantial evidence is just as valid as any other kind of evidence. Direct evidence is sometimes the worst; such as eyewitness accounts, which can be completely unreliable.
Do you believe in evolution? There is certainly no actual evidence for it.