And I agree, we can disagree even have an "argument" over it as long as we accept that neither one is "wrong" because we each have a right to our beliefs and way of life.
Queenie - I have to caution you that this is NOT what I am saying at all if you are talking about a religious faith.
If you are saying that we are all individually responsible to God for what we believe, then I would be in agreement. But the issue is NOT "all beliefs are equally valid," it is that each person has been given the ability, and the responsibility, to chose God or some other "god" in their life. The reality and the truth is that "sincerity of belief" is not the same thing as necessarily believing in something that is true. Who is the "object" of a given faith is one question that is very important to ask one's self.
The issue about "argument" is that argument is a discussion, passionate or 'calm, cool, and collected,' wherein the REASONS why someone believes WHAT they believe are given, rather that a "well, that's just what someone else told me I should believe and I'm just 'going along with that'." It is a "search for truth, no matter what that truth might lead me" sort of thing.
EVERY person who ever accepted Christ did so "in opposition to their human nature." They did so by not only recognizing what the truth was, but by surrendering their will and their life TO that truth and accepting God's promise to them as a result of their acceptance rather than "hardening their hearts" against the truth.
The issue is NOT "one religious belief versus another," it is which, if any, IS the true and correct belief. Those who do not accept Christianity also think that Christians are wrong to believe what they believe. So in the final analysis it does not matter what "we" think, it only matters what God has said IS
TRUTH. We can think "with God," or in disobedience to God.
So I can't respond to your questions or thoughts because I have never thought of them myself. But it's Shabbat and a good day to read and pontificate.
Here's a good "starting point" for thinking about what God has said and what He has chosen to reveal to us as HIS truth.
Deuteronomy 6: 4-5 "Hear, O Israel: The LORD our God, the LORD is one. Love the LORD your God with all your heart and with all your soul and with all your strength."
The thrust of the following passages in v.6-9 is that in order to 'accomplish' the command in v.5 a person MUST engage their mind and think about God, His commandments, and what He has revealed to us, "all the time." In other words, always consider everything from God's perspective, not from our own "human nature" standpoint.
This passage from Deuteronomy is what Jesus quoted and clarified when He gave the 2 greatest commandments. He also told the Scribe who responded to Him that "you are not far from the kingdom of heaven." The "problem" was that the Scribe was not "there yet" because he did not fully understand what God had said about the Messiah and had not accepted Jesus AS the Messiah.
That's not a "problem" that is unique to many Jews, it is a problem for most of humanity.