Not a chance.
Not a chance. I know Christianity is true and will not jeopardize eternal life for money.
Well you could just convert to Islam and keep being Christian, it’s not like he’s a mindreader.
Matthew 10:33 comes to mind: "But whoever denies Me before men, I will also deny him before My Father in heaven." I know Islam professes Jesus to be the Messiah, but the Christian understanding of Him is very different and this difference is fundamental and non-negotiable.
Say a fundamentalist Islamic regime took over and banned any open practice of Christianity, forcing Christians to officially convert to Islam. Would a Christian who publicly converts to Islam but practices Christianity in secret still be a Christian under your definition?