You asked the question, "If God is sovereign and controlling every event, then why did he create so many false religions". Whether God is sovereign or not, He did not create religions.
Well, suffice it to say that hypercalvinism doesn't accurately reflect mainline Reformed thinking any more than hyperarmenianism reflect mainline noncalvinist thinking. But the error anti-calvinists commonly make is to confuse total depravity with man's lack of free will. However, total depravity doesn't mean man has no free will. It means that man's will is subject to his nature.
If the unregenerate man can only do wrong, then he is not free. Freedom by definition means;
1. the state of being free or at liberty rather than in confinement or under physical restraint: He won his freedom after a retrial.
2. exemption from external control, interference, regulation, etc.
3. the power to determine action without restraint.
If man is confined or restrained by his nature, then he does not have free will. You change the very definition of freedom.
And if man truly had free will before Adam and Eve sinned, but not afterward, then who is responsible? God is, because you believe God changed man's nature.