Quantum field theory conserves mass-energy, so the new mass is coming from the energy in the Higgs field itself. It settles to a lower energy state and basically transfers that energy as mass to all of the particles that couple with it. Since it’s mass-energy and not just mass that generates gravitational distortions, the large-scale gravitational evolution of the universe probably won’t change, as this just moves things around a bit. It’s not creating energy out of nothing.
Before my comment I want to make clear I agree with the conclusion that abortion bans are clearly killing women at statistically significant rates.
That said, the stats reporting here doesn’t make sense:
There’s no way 14.5% of Hispanic women in Texas who got pregnant died some time during pregnancy, during child birth, or soon after. That would be unprecedented for any time since the advent of modern medicine. And the chart above this paragraph does not agree with it either. It’s a chart of deaths per hundred THOUSAND live births, and the numbers for all racial groups are all under 100, so less than 0.1%.
The way it’s stated also doesn’t suggest it’s a percent increase because it says it rose from 14.5% to 18.9%. I can’t figure out what they’re trying to say, but they should definitely have been more careful with presenting the numbers.