It’s absolutely a real issue, and there are politicians eager to stoke the flames because of it. But what a ‘real issue’ is, is in a sense contingent. What politicians tell the pro-life movement is that there’s a legitimate chance of them winning, and here’s how they win.
Texas secession is a ‘real’ movement, but it’s not a real issue, because there’s no political path laid before them to aid it along, no way to stoke the flames. Movements like that die out because there’s nothing, no wind, to kindle the sparks.
But it’s absolutely real. The ‘real’ question, like all these kinds of movements, is how much of this reality is being driven by the political movements themselves. Probably the nearest example is something like Mormon bigamy. It’s not a ‘real issue’ because nobody sees a path to move forward, and so it actually becomes less popular, becomes less an issue to people on a day to day level. If there were a national movement to legalize bigamy, suddenly it would be an issue where ordinary people feel compelled to take sides, support a party, do their part, ect. We have generations of people being told that not only is abortion is a sin but that they can do something about it, and so generation after generation has lived with the idea that they can, and their enthusiasm is a political issue that politicians can harvest and exploit. The same with gun control, more or less.
But at this point the issue has ‘taken off’ - it exists and is a real thing now. Abortion opponents have completely succeeded in radicalizing religious people across the US against it. And combating - directly combating - religious people is something the Democratic party is absolutely horrified to even contemplate. A motivated-to-death issue on one side an a reluctant opponent on the other that really wants it all to go away without any comment from their side is kind of the perfect storm for radicalization over time. But this is literally how the Taliban / Wahhabism / [name your poison] happens. Religious people can’t stand against more motivated religious people than they, and secular, moderate “social-religious” people can’t bring themselves to directly confront religiosity itself.
The ultimate crisis moment for the abortion debate is a Democratic politician on a national stage telling religious people, directly, that they’re wrong. As radicalized as things are now, that might well be a 1860 election debate moment. What will religious people do when they’re told to their face, by a national politician, that they’re full of bad ideas?