Allah is very compassionate without doubt. He was there caring for Mary, providing date trees and the like. Mary was scorned by her people as she was pregnant yet claimed to be chaste. We all have our tests in life.That was very nice of Allah. But we know scripture quoting as "circular reasoning" (I am not including representative image since you might be well aware of them), since there is no evidence for what is written, in any religion, not just in Abrahamic religions.
If the underlying concepts are similar then what was the need to send messengers again and again, sometimes just after 17 years of the birth of one, Bahaullah and Mirza Ghulam Ahmad! Only to increase problems in the world!
Yeah, Hinduism has no prophets \ sons \ messengers \ manifestations \ mahdis. As I mentioned in Hinduism, 'dharma', duties, our actions, are Supreme; Gods \ Goddesses or philosophies are not important. We have left that to individual choice. A person who does not follow his \ her 'dharma' cannot be helped even by Gods.
The Abrahamic Faiths are founded on the Life and Teachings of each Messenger renewing the Eternal Dharma and making it clear how it applies for each successive cycle in human history. So we have the life example of the Founder and a book that records their Life and Teachings. Of course there’s some embellishments with story telling. Jesus rises from the dead and ascends through the stratosphere to be with his Father in heaven. Muhammad splits the moon. Moses parts the Red Sea. Noah builds a boat which is the Ark of Salvation.
Time has made clear the spiritual power and influence of Krishna, Buddha, Muhammad and Jesus. Whether Bahá’u’lláh or Mirza Ghulam Ahmad has similar influence time will tell.
You must follow your Dharma as I follow mine. I have no need to criticise Hinduism and wish you well.