Christians, for some reason, don't have that "it is my truth rather than the truth".
It fustrates the mess out of me.
Yes, it is true: it is important to understand that Christians treat their belief as if it were Absolute Truth, and 'Hey! Don't blame me! It's God's word, not mine!'. In their heads, they can't understand how their beliefs cannot possibly equate to Absolute Truth. Not only that, but their truth is the ONLY Truth, all others be dammed! The milder view is 'God will decide whether a non-Christian can go to Heaven or not'.
I said that I would help you get a handle on the issues you raise by providing more and more information to shed light on the subject. Here are two such tidbits for you:
"The problem arises, however, because the theologians really want to
say that God is a fact, a thing albeit the first fact and the first
thing, the Being before all beings. Had it been clear that
theology was not speaking of facts, the conflict between
theology and natural science could never have arisen. But when,
during the era of the Renaissance, this conflict first arose neither
the theologians nor the scientists realized that there might have
been any profound difference between the languages they were
speaking. Theologians and scientists alike understood them^
selves to be talking about "objective realities'*, which is to
say things and events. Yet to add to the confusion the
language of St. Thomas, St. Albert the Great, and St.
Bonaventure was also metaphysical. They said that God was
not in the class of things, that he was not an event in time, that
he was not a body, that he had no parts or divisions, that he was
eternal, infinite, and all the rest. But it is very clear that with
some few possible exceptions, such as Eckhart and Erigena,
the scholastics were still trying to talk about a thing a very
great thing, beyond and including all other things.
The confusion has its historical roots in the fact that Christian
dogma is a blend of Hebrew mythology and history with Greek
metaphysic and science, complicated by the fact that Greek
metaphysic was never so clearly formulated as Indian, and
was always in danger of being identified with highly abstract
thought. Indeed, the Western metaphysicians from Aristotle
to Hegel have been above all things the great abstractionists,
the thinkers. In this respect they are at the opposite pole from
any traditional metaphysic, which is radically empirical and
non^conceptual. It is possible, then, that the Greeks derived a
number of metaphysical doctrines from India, but, for the
most part, mistook their nature and treated them as concepts
as abstractions which have an objective existence on a "higher
plane" than material things! It seems to have escaped the
Greek mind that a metaphysical term such as "eternity" is not
a concept at all It is the negation of the concept of time. It
involves no positive statement. It merely points out that the
notion of reality as extended through past, present, and future
is a theory and not a real, first-hand experience.
As a result, then, Christian dogma combines a mythological
story which is for the most part Hebrew, and a group of
metaphysical "concepts" which are Greek, and then proceeds
to treat both as statements of fact as information about objec'
rive realities inhabiting (a) the world of history, and (b) the
"supernatural" world existing parallel to the historical, but on
a higher plane. In other words, it talks about mythology and
metaphysic in the language of science. The resulting confusion
has been so vast, and has so muddled Western thought, that
all our current terms, our very language, so partake of the
confusion that they can hardly straighten it out.(!)"
excerpted from: 'Myth and Ritual in Christianity', by Alan Watts
*****
'The fundamental difference between Buddhism and other religions is that Buddhism has no God or gods before whom people bow down in return for peace of mind. The spirit enmeshed in the Buddha’s teachings refuses to offer a god in exchange for freedom from anxiety. Instead, freedom from anxiety can only be found at the point where the Self settles naturally upon itself.'
from: 'From the Zen Kitchen to Enlightenment', by Dogen/Uchiyama