As an adoptive parent, I can testify first-hand about the power of giving your heart to children who need a loving family and stable home. My children were adopted into a hetero-normative family, but after raising them for seven years, I know that the "straight" part of the family equation is in many ways incidental. It is the "love and devotion" part which makes all the difference in the world.
I have many gay friends and many straight friends, most of whom are or would be wonderful loving parents. A few of the gay ones wouldn't make the best parents, and a few of the straight ones wouldn't either. The point is, homo- vs. hetero- is not a particularly useful criteria to measure parenting. It's other tangible and intangible things (stable home; ability to pur the child's needs first; commitments to education, health care, spiritual development; building confidence, self-esteem, independence, empathy, good decision-making, etc.) that make a wonderful parent.
And if a child doesn't have a loving home and needs one, it's absolutely nonsensical to deprive him/her of the opportunity for a happy life because of tired old prejudices and disproven canards about the dangers of families with homosexual parent(s).
I urge you to put the needs of children above the needs of idealogues to push a particular agenda. Please reject any efforts to discriminate against foster and/or adoptive parents based on sexual orientation.