Homophobia; a trait of ignorance

So these homophobic ignorant retards keep creeping into my inbox to remind me that standing for gay folks makes me complicit and liable to 14 years jail term in Nigeria, and a top 10 Hell fire candidate.
Their basic point of argument is that since sexual intercourse is for procreation (childbearing), how would gays give birth to a child? Therefore, homosexuality is unnatural, and never a part of God's plan for humans.
I will flaw this argument on two fronts:

1. Who determines what is natural or unnatural to humans- God or Humans ?
2. Who knows God's plan for humanity? Even the holy books have been proven deficient in underscoring God's intent or complete purpose.
   And the third reaction would be that an argument that hinges it's total premises to the supernatural or God only is flawed at arrival. The conclusion of such arguments will be invalid on numerous other logics.
   Therefore, dear homophobes, procreation is not an exclusive preserve of the penis fucking the vagina. Mary mother of Jesus didn't collect the penis but she gave birth to Jesus, right? Would you consider that natural if you believed in that story-story?
   Today we have the IVF, and other modes of getting children without sex. Gays donate their rainbow sperms for barren women too.
   See, all penises are not meant for the vagina just like all vaginas are not meant for dickheads. Some ladies use carrot or cucumber to scratch their clittoris, and others use cassava tubers to hit their G-spot.
   You that eats girls vagina with your mouth, and suck ladies breasts, is that one natural? The breast is meant for suckling by new born babies you dumbhead!
   And if you insist that sex is primarily for procreation, why not chill until you got married before you start fucking...
   If you cannot zip up befor marriage, you are fucked-up unnatural homophobe and may be stupid too. Can you stop squeezing breasts, It's fucking unnatural and you can't procreate like that.
   Get it now or be dumb till you die.