Indeed, everyone, whether Christian, athiest, non-believer, etc., will need to take personal responsibility for their decisions.
There is however, a great deal of difference between a nonreligious person taking personal responsibility for their decisions and a religious person abdicating such responsibility to "faith" in a belief system.
You say a Christian's belief, with faith, is an "inherent irrationality"...
I don't just "say" it, I've presented the reasoning which shows that "faith/belief" are inherently irrational since they specifically rely upon a _lack_ of evidence/substantiation. I've asked several people who profess to such, (at least three of them on this forum), if they instead maintain that these 'beliefs' are rational and to support their opinion with something other than 'I believe my beliefs are rational', (which is circular and a null argument). None have deigned to represent "faith/beliefs" as rational positions per se however, few could reasonably be expected to readily admit that they hold irrational beliefs.
... while in turn, some think that ones who cannot break with the fascination of accepting only concrete evidence, is just as odd.
Why would that be considered odd? Do you not require concrete evidence of the groceries you purchased to be bagged to take home? Does not the grocery cashier require concrete evidence that you've paid for those groceries? Would you prefer to have 'faith' that the groceries are yours or, expect the cashier to have 'faith' that you paid for them?
Everyone who dies will either live forever with God, or live in the eternal place of punishment, OR, will know nothing because of nothing afterwards. That's the time when those "belief systems rendered false" will be either be shown to be true, false, or nothing.
You're speculating there, (since there is no evidence to support your contentions). Being unaware of other potential options, (no one knows yet), doesn't default the options to the ones speculated upon. The belief systems mentioned are rendered false because they rely wholey upon "faith/belief" sans substantiation. That makes them false claims, (since the claimants have consistantly failed to support their claims with anything other than they believe because they have faith - a manifestly circular justification).
As a believer, I know what I believe to be true is definitely based on my faith in the Lord, in His Word, and on historical teachings.
You've just confirmed my assertion of the circularity of such a justification.
You nor others in here don't have to exercise that faith nor will I ever be one to try and force it on anyone. I will speak of it when I feel like I need to or am asked questions about it. Like others in here have said, this is debate and discuss, not combat and torture.
Yes, this forum is entitled "D+D", rather than Evade + Sophistry, (which doesn't account for those of "faith" & religious beliefs evading debate points or using sophist circularity as discussion). These are words; they do not constitute "combat" nor "torture" although they do constitute challenges to those making unsupported claims, (which may be viewed as unconfortable for those unable to meet such challenges). Consider this; how strong is a belief or faith that cannot stand up to a merely textual challenges, (let alone such documented 'conversion at the point of a sword' challenges to "nonbelievers")?
The bottom line is that people become Christians because they choose to believe, others choose to ignore any concept of God, while others are searching for answers.
One of the main points of contention within this debate has been whether or not such a choice "to believe" is made on an irrational or, rational basis. So far, no case for a rational basis for that choice has been presented while the reasoning behind the counter contention of an irrational basis has been elaborated upon extensively. As far as "searching for answers" goes, I submit the theory, (not the claim), that those holding whichever religious beliefs they cling to have ceased searching and "believe" they've found their "answers". On the other hand, those who do not cling to such irrational beleif systems are in a better position to keep searching, questioning and being skeptical of unsupported opinions.