If abortion went away as an issue right wing cultists would just focus on something else the court decides: guns, CRT, gays, the list goes on and on. They try to win every cultural issue through the courts because most of society doesn't agree with them and they can't win these issues at the ballot box.
And they of course make the exact same allegation about liberal sociocultural policies. The truth is that on a lot of this stuff we just don't know what positions would hypothetically win at the ballot box because the US's current government system and political culture--including, yes, previous arrogations of power by the judiciary--have made resolving them democratically structurally impossible.