You haven't offered any real evidence in rebuttal. In response to actual observations about the behavior of the "pro-life" movement, all you have is speculation about how things might be different, with nothing to back it up. One does not have to make any special effort to see how the "pro-life" movement behaves; just read the news and see how they act. Apparently, though, a special effort is required to understand what that behavior implies about the character of the movement.

The question is not what some hypothetical "pro-life" person whom you've constructed in your head does or doesn't do. There is an organized movement for this cause, and it does not act in the ways it should act if its stated goals were its actual goals.

There is no coherent definition of personhood which includes zygotes, or even most pre-third trimester fetuses. Persons are intelligent, self-aware beings; this requires higher brain function.