On no!  Laws might change!  

Not to worry.  Why not to worry?

Try thinking of a law that the majority (read:  the MAJORITY) of the public want abolished, immediately.
Anything from the smallest traffic laws to any law debated by SCOTUS.

There are none.   The reason?   In a democracy, lawmakers invariably only enact laws that the majority will agree with and abide.  And any law that the majority of citizens disagrees with cannot long stand.  This has been true since our nation's founding.

We assume that we're at the mercy of our lawmakers.  But actually, our  lawmakers heed public opinion more than abstract legal reasoning.  

So if you're worried that abortion will be outlawed,  it's simply not going to happen.   

Why?  Because since 1970, the percentage of the public who want abortion outlawed has always been less than 20%.   That is the true reason for why abortion is legal -- majority opinion of the public.  Particular judges only seemed like the reason.