whats your opinion on homosexual couples having children??

I've read some posts around where parents are 'disappointed' in their children when they 'come out' because they think they can never have grandchildren....WHAT?!?!?! who said a homosexual couple can't have kids??? there are so many options out there. you want a blood child...fine...that's easy to do, you just need another willing half. either a donor for woman or a sergant mother for men and there...you have a blood grandchild. also ADOPTION, what just because you adopted a child this won't be your grandchild?? how parents can be so self centered....whats your opinion on homosexual couples having children??