They did not have the votes to do so. you are aware that you need not only majorities in both houses, but effectively a 60 vote majority in the Senate to overcome the filibuster? And again if it's so easy to implement legislatively, it would have been equally easy to overturn it when the GOP got back into power. The Democrats had a filibuster proof majority for only a brief window between the 2008 election and the death of Ted Kennedy. Obama used his legislative muscle to pass the Affordable Care Act. At that time, there wasn't a prospect of a conservative court majority. Trump did that, by appointing 3 justices, two of them under dubious circumstances. All of them lied and said they regarded Roe as settled jurisprudence.
if is essentially impossible to pass a constitutional amendment at the present time as you need the votes of 3/4 of the states as well as both houses of Congress. Neither side can muster that majority.
And if you were familiar with the history you'd know that the decision to overturn Roe was inherently political. The right never believed that the ruling was correctly decided. It eventually became a litmus test for all Republican justices. The originalists on the court never believed in the right to privacy inferred from the Fourteenth Amendment. It is not explicitly stated.
the Republican Party isn't ashamed to take credit for overturning Roe, except when it has to face consequences.