quite the opposite. A single parent (if straight) will raise a child like any other couple would, only by themselves. A gay couple raising a child, will screw up the child's mental ability to determine what he/she should, and should not be, attracted too.
Could you imagine being raised by 2 gay men. At a young age, you would naturally think that how they acted was "normal". Of course by the time you went to kindergarten, everyone would seem irregular, and act strangely (to you). Growing up would be awful, especially once you hit your teens.
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