So heaven is available to anyone whether or not they follow your God's law?
That's completely correct, sir. The heavens can no longer discriminate against people who have preexisting sins. See heaven.gov to see whether you qualify for a plan that has a maximum deductible of 5000 years in purgatory before you are 100% guaranteed entrance into heaven.
In Heaven you will sit around passing a bong back and forth with God until the end of time, with occasional teeth cleanings. Gold and Platinum plans are available that include options for 72 virgins, or for your own planet to rule over, or for the next in a series of afterlives as an elephant, then as a tapeworm, then as Ted Nugent, then as a cricket, and on and on until you achieve Enlightenment with an endless supply of meth and the memory of your life as Ted Nugent to serve as a guide.
Say, for instance, that I preach that your particular God sucks donkey balls, would he/she hold that against me?
If you like your particular religion, you can keep it. (Of course that's assuming that people wouldn't tolerate a religion where their God sucks donkey balls anyway- which it turns out, is false.)
We all know a human would, but what about a God?
Well that's the whole point- we obviously can't rely on God to fix the situation on his own behalf. He has his own interests, and would obviously like to discriminate against atheists and heretics, and keep them from entering heaven. After all hey arrive confused and with awkward questions for Him- especially assholes like Stephen Hawking who will instantly start quizzing Him about quantum gravity. He sees it as a waste of His endless time. That's why we needed to make it a law, with a mandate on God to allow all individuals into heaven. Even guys with more money than God now have to face the fact that this is working. So folks, just remember to check out heaven.gov or go to Hell.