As far as what I think the intent of your question is, there are 2 or 3 hypothesis that explain how homosexuality could result from evolution. Breeding is not the only way to pass on genes.
Now I have to leave. It's been fun. Carry on.
Natural | Define Natural at Dictionary.com
If we are going to find out what nature intends, you need to introduce me to that person named Nature. People intend things, nature simply is.natural
Use Natural in a sentence
[nach-er-uhl, nach-ruhl] Show IPA
adjective 1. existing in or formed by nature ( opposed to artificial ): a natural bridge.
2. based on the state of things in nature; constituted by nature: Growth is a natural process.
3. of or pertaining to nature or the universe: natural beauty.
4. of, pertaining to, or occupied with the study of natural science: conducting natural experiments.
5. in a state of nature; uncultivated, as land.