There's no place like home...

For better or worse... it all starts at home. 
Whether children are raised to carry on their parent's homophobia as they go out into the world, or whether they are raised within a safe, loving but non-traditional home -- each next generation often lives their lives according to the framework that was initially built at home.  
One example of the way homes are changing is a 25 year study that shows kids of lesbian couples are the recipients of a great parenting environment in which to be nurtured and reared.

There are many struggles that gay and lesbian families cope with on a regular basis. Such as: not being acknowledged in their communities as “real” families, constant barrage of persecution from ex’s or other family and friends who come to the table with their own acrimony, compounded by the lack of family and relationship protections (“rights”).
All families have challenges! Whether they are comprised of “nuclear” or blended, or LGBT members… safely guiding children to adulthood is not for the faint of heart! No matter how many longitudinal studies there are, there will always be detractors.