You absolutely have the right to ask any questions about any belief. Only thing is that you should not target any personality of any faith.
Muslims try to answer the questions raised by you instead of reporting abuse.
I could reply one of your question although I'm not a scholar of Islam. God used his messangers as a role model for the humanity. & hence he wanted Ibrahim to sacrify his son. He wanted to show to the people the epitom of the love of his messanger to God. Everybody knows how much a person a loves his son. If the person could sacrify his son for somebody; means that somebody is the most beloved.