“Trinity isn’t like the Hindu Trimurti! There is no comparison with the Trinity. … one true God!”

> “There is no comparison with the Trinity. This is the uniqueness of the one true God who Christians worship.”

Whatever you're attempting to communicate about your beliefs must, upon apprehension, be intelligibly understood by the faculties accepting them in proper functioning — the prima facie justification of which is, simply, not at all dependent on attempted underlining with your labelling of them "incomparable" or "mysterious".

Are you going to convert to Hinduism if a Hindu says,
"There is no comparison with the Trimurti. This is the uniqueness of the one true God which Hindus worship."
?? ?? ??

Or perhaps you will argue for them that they are just as monotheistic as you, especially when they are calling multiple divine objects of worship as God ? ? ?

You have, so far, only demonstrated exactly what would be said if these logical criticisms against your polytheism are true and valid (especially to anyone objective and unbiased).
In fact, you cannot refute the unrelenting light of the truth, despite your contempt for its evident manifestation as the certain foundation for the servants of God!
We rejoice in His Revelation and Perfect Prescription.

You stand convicted, as a disbeliever: for whom hellfire is certain unless you worship God Almighty alone, and turn from all polytheism & false worship.