ubiquitin: So what the Catholic Church took that position. Most American Catholics don’t support having no exceptions nor do most Americans. The vast vast majority of Americans support exceptions. If and when a law is enacted outlawing abortions it will surely have exceptions.
You can support a law outlawing abortion that has exception for the mother’s life and health, when in danger, and when assaulted. The law can be broadly written to cover virtually any halachic exceptions. There’s no excuse to support a regime permitting abortion-on-demand.