I’m not entirely sure what your point is. I am perfectly in agreement that Hinduism incorporates monotheistic aspects.
My point is that Hinduism can also incorporate the most “pagan” and polytheistic tendencies. Krishna is not saying that all other gods are false, only offering devotion to himself as a way to salvation. Within the overall umbrella of Hinduism there are a great many other ways to get there.
Christianity cannot do this, it has only way way of reaching salvation. By its very nature, along with Islam and Judaism, it is exclusive. A lot of people dislike it, but that is the nature of these partisular beasts.
Christ, and Mohammed, and Moses are exclusive to each other and to other religions.
I think the confusion here is the mode of “salvation” that is at the heart of the difference in beliefs. From reading the comments by the others on this thread, I think the whole question can be distilled into the following:
One system believes that all life is “holy” but “separated” from the “Supreme” seeking reunion as “ultimate perfection”, through “reincarnation” (Dharmic religions), while the other system believes in one of the two:
(1) life is a “trial of faith” (Protestantism, Islam), and only those that “pass” this “trial”...
(2) life is an opportunity to follow a set of rules and only those that do (Judaism)...
...get to a place where they will live eternal lives, in their original being, but “perfected”, to negate the flaws from the “fall” i.e., the Semitic “heaven”.
This difference, I thought, would be clarified from the Gita excerpt I posted earlier, namely:
“And, at the hour of death,
He that hath meditated Me alone,
In putting off his flesh, comes forth to Me,
Enters into My Being—doubt thou not!”
Catholicism requires “works” plus “faith” as the prerequisites for “salvation”, which is why I demarcated it separately from Protestantism, which is reliant on faith alone as the path to salvation.