Swimming as lifelong option While swimming is less practical then weight lifting, You can continue it throughout your life, Even through injuries with modification. Weight lifting is great to develop muscle mass or target specific muscles but it isn't always going to raise your heart rate up.
Last i checked heart related death is right there with cancer and while weightlifting is great in conjunction with another cardio based workout, It won't meet the cardio demands most people do.
Consent and the Right to do what you want While we have already gotten over the legality of being gay we care still getting over the moral ambiguity of being gay. Homosexuality when done in a consensual relationship is in no way different then a hetero relationship.
Most arguments are colored by their little black book of hate and don't have any reasoning's as to why homosexuality is wrong outside the religion. It hurts no one. Gay is not contagious (even if it was it wouldn't be too bad to help control the population and find homes for our overburdened foster care system) Even the argument that it is against nature because we are meant to procreate is unfounded. There are animals that have homosexual relationships. It does not impact the species productivity and infact is helpful in ensuring family group survival. A close knit group that has an extra set of hands means easier childcare. Same reason why human women likely live past menopause, They can stick around to help out the family unit. Ocra whales do it.