Purposefully killing your child to the tune of hundreds of thousands a year is the definition treating a pregnancy in an unhealthy way. You premise fails at the very start and isn't distinct in its verbiage from what you could say of a child that has been born. What's beyond what could be described with such a benign word as "irresponsible" is killing your child and thinking that is a viable solution.
Pretending your opinion on someone else's unborn is shared by strangers isnt 'healthy' either. If someone doesnt want a child, or cant afford a child, or cant afford lost work time to sickness for a child they cant afford
AND may mean not being able to support the dependents you already have (kids, elderly, disabled, younger siblings, etc) certainly does not lend itself to considering an unborn as a child-to-be.
Keeping that in mind, choosing abortion is demonstrably responsible:
--There's nothing responsible about having a kid you know you cant afford and expecting tax payers to take up that burden with public assistance.
--There's nothing responsible about having a kid you arent emotionally prepared to have and may abuse or neglect.
--There's nothing responsible about having a kid if you know you wont stop drinking, smoking, doing drugs, etc that will damage the unborn.
--There's nothing responsible about remaining pregnant and dropping out of high school or college or missing work and not fulfilling your potential in society.
--There's nothing responsible about remaining pregnant/having a child and not being able to fulfill your other commitments and obligations to family, dependents, employer, church, community, society.
--There's nothing responsible about having a kid and giving it up for adoption when there are already over 100,000 kids in America waiting to be adopted. It means one less waiting will find a home, that's a direct, harmful impact on those kids.
So can you see that it can be a very responsible decision? If not, why not?
Is it all just about 'more boots on the ground' for you unless a woman's life is immediately on the line? For me, I support quality of life over quantity.