Well Gautama Buddha has said to attained the Nirvana. So that is the reason of him being knowledgeable about the Sansara (Karma). Anyway the Gautama Buddha's story is much more believable than Muhammad being stalked by Gabriel in a cave.
How do you know he attained nirvana? How do you know that nirvana actually exists? Has someone experienced it? (without the use of alcohol, drugs and whatnot)?
And how do you know that it wasn't an evil demon that gave Buddha this knowledge?
And you have got it wrong again. Muhammed received revelation all through out his last 23 years of life....and it wasn't just that incident in the cave.
How do you know one cannot choose between being gay and straight. Are you gay too?
By simple reasoning. Can you choose to be gay or straight? Can a straight person decide to switch? It's just non sense.
And besides, why would people choose to be gay? After all the problems that they will have to face?
And no, I am not gay.
Even then why god tell us to punish the Gay people if god wills it that way?
Allah doesn't tell us to punish gay people.
Yes. Sins are actions, not feelings or state.
Feeling jealous isn't a sin in Islam...but that feeling manifesting into action is.
And does Buddhism teach that "being gay" is a sin? Even when it is not a choice?
Just like in the case of adultery, sodomy also needs 4 witnesses in order to be punished through a sharia court.. This means it's almost impossible to prove unless it's done in a public place.
So if these acts are done in private, then the proper Islamic state won't punish people. But in public yes.
If it is impossible to test us equally why then give universal guide book (Quran) to be followed? Isn't it unjust?
I don't get it.
We are all people on this Earth and our source of guidance is the Quran. If you die without hearing about Islam then Allah will test you in the Day of Judgement. If you hear about true undistorted Islam and reject it, then you become a disbeliever and will be punished.
Does god really need us to punish people on his behalf? LOL what kind of god is that?
I didn't say that. I imply that God won't stop people oppressing others. Or otherwise he is restricting choice.
If we choose to be bad. Isn't it what god wills? So isn't god responsible for us being bad?
No. God doesn't will anyone to do bad. It's we who choose our nature...just like how God chosed his nature and names. We have some of his spirit.