The problem is, Those that demonstrated the bible to be unreliable, were not Christians now were they.
Therefore they have no idea or clue or knowledge of understanding, what the Bible does say or confirm's.
All you have is what someone else will say.
Let's say, if someone told you that the sky is actually green, you would believe them on that also and why not, you believe them on anything else.
Just because people will say the bible is unreliable, that doesn't make it unreliable just because people say it is.
All it does do, is show peoples lack of knowledge and understanding what the Bible does support and confirm's.
Well if to what your saying, That the bible is unreliable, how is it that according to the Bible, which you say is unreliable, how is it, that you just fulfilled Prophecy of the bible, which was written a little over 2000 yrs ago.
The bible does say --"But these speak evil of those things which they know not, but what they know naturally, as brute beasts, in those things they corrupt themselves, How that they told you there should be mockers in the last time, who should walk after their own ungodly lusts"
Now that's amazing, how people like yourself fulfill Prophecy of the bible.
Which you call unreliable.
Now that is amazing.