What is more likely to be overturned by the Supreme Court within a decade

[MarkD]

Neither but Roe is more likely.

Many people still view abortion as murder. Even if they might disagree with same-sex marriage, they don't believe it's led to any loss of life.

The only things that have been lost by people who oppose same-sex marriage is: 1) their presumption of their moral superiority, and 2) a  basically rational, though flimsy, connection between the concepts of marriage and reproduction.

Be that as it may, this question is about the likelihood of the Supreme Court overturning ITS decisions on these two topics, and so public opinion of abortion and same-sex marriage is hardly relevant. Are Ginsburg or any other liberal Justices going to leave the bench in the next 3.5 years? Is Kennedy, the perpetual swing vote? And when a vacancy occurs, what is the likelihood that Trump will fulfill his campaign promise -- to appoint people with "a conservative bent"?