These are canards to me. I hear them from atheists frequently. For 1) above - Jesus was already all-powerful, receiving all things and worship, etc.
So, therefore, their sacrifice was completely pointless and unnecessary.
The rest of your post seems to indicate that all human trials are pleasant, even easy, based on reward.
I am getting increasingly tired of you missing the point. I never said the trial would be "easy" or "pleasant". That's you dishonestly putting words in my mouth - don't do it again. The point is that if you're doing something finite for infinite reward - while also giving a huge benefit to many other people - it can hardly be considered a "sacrifice".
What did an athlete sacrifice and suffer to win a gold medal? Nothing! What did a devout student give up to earn two Ph.D's, really? Nothing! As soon as you apply common sense reasoning to biblical things (stop putting them in unique classifications) the Bible will be more sensible to you.
Ignoring the logic of the argument and formulating strawmen only serves to demonstrate how little you're willing to debate honestly.
We are not talking about ordinary people going through tremendous, life-long trials to achieve something. We are talking about an
all-powerful being (a being that can literally do and achieve anything instantly) making a conscious decision to needlessly suffer for three days, at the end of which coming back to life and saving humanity from a fate that
they themselves imposed. The fact that you can't admit that this isn't any kind of sacrifice is astonishing to me.
As for 2) What does that mean, "placed the sin on humanity in the first place". Free will beings make free will choices for sin or righteousness rather than those things being "placed" or "awarded" to us. Do you tell your partner, "If you were a better lover, I would never have needed to commit adultery in the first place . . . " Your partner wouldn't accept that shirk of responsibility. Nor does Jesus Christ.
Once again, you're comparing ordinary people to your supposed omnipotent, all-powerful creator. Your creator made the rules, they set up the conditions, they were fully aware of every consequence of every action before it occurred, they had the power to change any of this at any time and to alleviate it by any means but apparently made the choice not to and instead did a ridiculous, roundabout excursion by putting themselves into a mortal body and getting themselves tortured and killed. It makes absolutely no sense and cannot, by any reasonable human being, be considered a sacrifice.
The fact that you're unable to acknowledge that your God is a GOD and keep comparing them to human mortals just proves to me that you don't actually believe in God at all - you just want to feel like a human being is in charge of everything, because an ignorant, flawed human being could explain the Universe better than your God can.