Being that it is Easter. Don't Christians ask a little too much?

In the milieu of Axial Age prophets/thinkers, there is a common notion. That human beings should be empathetic and compassionate. The Buddha, who thought that belief in a supernatural deity was irrelevant and probably a waste of time, believed the principle.
So did Jesus. And Mohammed. Which makes The Buddha, Jesus and Mohammed, in my book, OK guys.
But in order to be a Christian, you have to believe that Jesus died and then defied death and came back to life.
Compassion and empathy are one thing. Resurrection is another thing all together.
Isn’t it a little too much to ask to believe in re-animation after death?

Are there people who call themselves Christians, but simply cannot accept the notion of re animation after death?

Is it possible that such folks are Buddhists or Muslims, but don’t know it?