Which you aren't doing with broad declaration, unless the point is that you can make broad declaration.
No, chrys, it isn't. It never was and it likely never will be.
The issue is important to defend and move. There are democrats who feel the same way. Planks don't build much of anything if the man with the hammer isn't swinging. And Republicans, with working majorities, have never swung the hammer. And the men they've given the hammer to have believed in abortion. They've only been narrower about it. I don't know if you count that a virtue. Apparently.
No, if you want to win on an issue you win on the issue, you don't attempt to destroy a party whose popularity with a large section of the population isn't rooted in any one issue, but in a general philosophy and a host of issues.
Is it easier to change a man's mind on an issue or a great many issues? The answer to that is the answer to the wrong headedness of your approach...but then, you want the Democratic party dead for other reasons as well. You just use this as the moral justification and sometimes appear to pretend that it's the whole show when anyone who has listened to you understands that's not the case.