How can a Christian reject part of the Bible and still call themselves a Christian?

[Lek]

-and when they don't...but there is no other, meaningful, objection?  When they are good people who do good things...what....then?

We must accept that we are sinners and need to be covered by the sacrifice of Christ. This is true no matter what religion we are or whether we have read the bible and know what his biblical name is. If we try to be the best and most and most moral person in the world, we will do many goods deeds, but we will not be with God for eternity.