First, a quote from one of the world's greatest evangelists, "I believe the man who is not willing to submit to the electing love and sovereign grace of God, has great reason to question whether he is a Christian at all, for the spirit that kicks against that is the spirit of the devil, and the spirit of the unhumbled, unrenewed heart." -- Spurgeon
If you believe in Heaven, you have to accept Calvinistic theology and reject free-will. After all, there will be no sin in heaven. Apparently then, we will not have so-called “free will” in heaven. Otherwise, we would have the self-determining power to reject God in heaven.
People suppose that “free will” is needed to genuinely love God. Well, according to Scripture’s view of heaven, that’s not the case. If He can take away free will in heaven, why do we suppose it exists at all now?
If you believe in heaven, you must inevitably accept God’s sovereignty in election.