A number of legitimate polls have found substantial majorities/pluralities opposing the ruling [0].
> should have either seen pressure building up on "pro-life" states
On the one hand, I've definitely seen this pressure at the grassroots. On the other hand, there has probably been significant geographic sorting, especially as the states that are leaning towards de jure abortion bans have been trending that way de facto for years, likely driving people that care about the issue to friendlier states.
> or a BLM style movement in favor of legalizing abortion.
Give it a minute, abortion was a legally protected right until 2 weeks ago.
[0] https://fivethirtyeight.com/features/americans-views-on-abor...
And before you complain, that's exactly what I was talking about. That's what we are talking about.