That's not a fair argument, brother... guilt by association. So can we assume that those who hold that homosexuality is determined are reflecting the antinomianism thrusted upon us by Calvinism that makes men deny their responsibility before God? Of course that is fallacious, and I don't believe it either.
I happen to love my Calvinist and Reformed brethren who take a stand for truth, especially Lordship and Perseverance (particularly men like John MacArthur and Ray Comfort).
Call it what you like, but it is better than outright lying about Calvinist beliefs. Can you name any true public Calvinist who is antinomian? Just one. Can you name even one confession that teaches both the Doctrines of Grace and antinomianism? Being that you can't, either you don't understand that which you criticize, or you are engaging in a deliberate slander.
Furthermore, can you name any confession or published ST by a five point "Calvinist" who teaches a rejection of personal responsibility? In my experience, it is the "Free Will" Theorist who teaches either legalism or the true "The Law Was Nailed To The Cross" antinomianism.
Noodle this out a bit, if what the student of reformed theology is true, then the same God who brings about faith and belief (via election/regeneration) will also bring about sanctification to perfection. (Romans 8:30; Eph 1:4-5). Compare this to Free Will Theory (FWT) that places the burden of salvation on one who hates God (Roman 1:20), is a mortal enemy of God, rebels against all that God says can never please God (Romans 8:6-8), slaves to Hell and sin(Romans 6:19-20; Eph 2:1-3), can't understand the Gospel, consider it foolishness (1 Cor 2:14), and are blinded to the Gospel command to repent (2 Cor 4:4), and would prefer for rocks to fall and crush them than to bow the knee (Rev 6:16). Somehow everyone who comes to Christ must first make God a liar. Then this person grades his own test and gives himself an 'A'. This is accomplished because the FWT says "I believe in Jesus". Well what constitutes belief? What if the Jesus that the FWT claims to believe in has nothing in common with the Jesus found in Scripture? Quite possible, actually inevitable.
Jeremiah 17:9 "The heart is deceitful above all things, and desperately wicked; who can know it?"
Yet the FWT claims to believe the same God that said that the unregenerate has no hope in believing on his own. For the FWT, to believe in Jesus means that you can't believe the Bible. That is an inescapable paradox.
Now returning to the article. I bet that it would be impossible to find a true five point Calvinist who teaches that the saved can engage in the hedonism and vile perversity that regularly is tolerated and accepted in the FWT community. The passages referenced above are prooftexts that indicate that many of those who claim to "believe in Jesus because of their own Free Will" will also use that same free will to believe anything else that they want to believe.