A bumper sticker reads, "How much sin can I do and still go to heaven?"  The real question is, "Why would anyone who hates God and God's ways want to go to heaven to be with God?"  Those who love darkness more than light will not come to Jesus.  God just lets these people have what they want.  Look at the following clear Scriptures:

1Sa 8:7-9 And the LORD said unto Samuel, Hearken unto the voice of the people in all that they say unto thee: for they have not rejected thee, but they have rejected me, that I should not reign over them.   According to all the works which they have done since the day that I brought them up out of Egypt even unto this day, wherewith they have forsaken me, and served other gods, so do they also unto thee.   Now therefore hearken unto their voice: howbeit yet protest solemnly unto them, and shew them the manner of the king that shall reign over them. 

Rom 1:18-32 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;   Because that which may be known of God is manifest in them; for God hath shewed [it] unto them.   For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, [even] his eternal power and Godhead; so that they are without excuse:   Because that, when they knew God, they glorified [him] not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.   Professing themselves to be wise, they became fools,   And changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things.   Wherefore God also gave them up to uncleanness through the lusts of their own hearts, to dishonour their own bodies between themselves:   Who changed the truth of God into a lie, and worshiped and served the creature more than the Creator, who is blessed for ever. Amen.   For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:   And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.   And even as they did not like to retain God in [their] knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;   Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers,   Backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents,   Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:   Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.