Romans 2:18 New American Standard translation (My comments are in parenthesis and in red.)

18 The wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who suppress the truth in unrighteousness.
19 Because that which is know about God is evident within them for God made it evident to them. (God, evidently has created man to instinctively recognize his existence.)
20 For since the creation of the world His invisible attributes, eternal power ,and divine nature are clearly seen, being understood through that what has been made so that they are without excuse. (If you woke up some morning and saw a Cadillac in your driveway common sense would tell you that someone had to have designed and made the Cadillac. In the same manner, when one looks at the creation common sense tells one that there must be a Creator and that this creator is invisible, of a different order than the creation itself and must be mighty in power.)
21,22 For even though they knew God, they did not honor Him as God or give thanks; (Evidently, everyone at some point in their childhood knows God.; but not everyone honors Him as God and gives thanks to Him when this awareness is made real.)
but they became futile in their speculations and their foolish hearts were darkened,. (Rationalization of their unwillingness to acknowledge God sets in.) Professing themselves to be wise they became fools. (Think college professors and other elites that deny the existance of a creator)
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24 Therefore God gave them over in the lusts of their hearts to impurity, that their bodies might be dishonored among them.
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26 For this reason God gave them over to degrading passions and their women exchanged the natural function for that which is unnatural.
27 And in the same way also, the men abandoned the natural function of the women and burned in their lusts one toward another, men with men committing indecent acts and receiving in their persons the due penalty for their error.
28 And just as they did not see fit to acknowledge God any longer, God gave them over to a depraved mind to do those things which are not proper. (Politicians and others that justify homosexual practice do so because God has given them over to such because of their rejection of His ordinances.)
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32 And although they know the ordinance of God that those who practice such things are worthy of death, they not only do the same; but also give hearty approval to those the practice them (Those that approve and support gay rights are doing so because of a “depraved mind” brought about by their first rejection of any acknowledgment of a Creator.)