Retroactive shaming of anyone who was ever against your political position seems like some folks are devolving toward something even worse than cancel culture. The rudeness, as you put it, is not going to change my mind about the issue itself, but it does make me want to avoid the impossible-to-reason-with zealots.
To be honest, I think if we could strip all existing talking points on both sides, and get people to truly derive their own personal conclusions from scratch, I would expect the vast majority of people to be both in favor of women having absolute autonomy over their health care and body choices, and also in favor of trying to avoid abortion as a contraceptive if we can, avoiding late abortions, and hopefully using it only or mostly as a tool to treat bad situations. In other words, I would expect a lot of people to have the exact stance you’re arriving at - that we need to allow people to do what they need to, and we still hope that abortion isn’t happening excessively or willy-nilly or late without medical necessity. The core idea behind the two camps, the ‘pro-‘ position of each side, is not necessarily in opposition at all, so it’s funny it’s gotten so extreme and presented as completely opposites.
And I’ll do you one better:
US Supreme Court Justice Antonin Scalia, for all his faults (which are numerous), supported the 5-4 majority in a landmark case regarding flag burning.
https://en.m.wikipedia.org/wiki/Texas_v._Johnson
Imagine if Justice William Brennan, who wrote the majority opinion, said to Scalia rudely and dismissively “you don’t really believe in civil liberties, you’re only an absolutist on free speech”. It could have led to it being illegal today to burn the flag (which I don’t approve of on a personal level) - and presumably many other ways of expressing disapproval with how the US government conducts itself.