Just as easily? Roe v. Wade has survived five Republican presidential administrations, three conservative-led Supreme Courts and Republican controlled congresses. For 43 years, it remains the Law of the Land.
I'd hate to see who Trump would appoint to make/break that decision.
You might want to worry about who Hillary will appoint.
She won't appoint anyone if Trump appoints her.
So we should just give up? That would be easy, wouldn't it? Public opinion of abortion has also changed significantly over the years. It's the most important social issue of our time and you want to quit?