I count myself very lucky indeed that, in my immediate circle, it's still possible to disagree over most given subjects without creating any animosity.
However, I have noticed this seems to be increasingly rare now and disagreements are less about discussing facts, ideas and solutions, but more about whether or not you're a 'good' or 'bad' person and the outward perception that goes along with it.
Of course, this has always been the case, but it seems much more common now, to the point where I've seen people actively hold contrasting opinions dependent on the present company.
Is it more difficult to engage in civil disagreement/debate now than it has been in the past? And, if so, why?
I've found that just talking to people in person yields better results in this sense. Online discourse is all full of opinions stated in manners which people wouldn't dream of using in person.
Tuning out of the news and social media has been a good reminder to me that most people of all beliefs and political persuasions actually have far more in common than that which separates us. We mostly all just want to do a fair day's work for a fair day's pay, look after our families, have enough to do the things we enjoy doing, and for the authorities and bossy people to just leave us alone.
Most people are fundamentally decent, but social media is all performative and it brings out the worst in humanity.
I've got some good friends who are polar opposites to me politically, but I still like them. It seems increasingly common online to display one's purity by being as intolerant of differing opinions as possible. What a sad and boring life that must be for people.
Why? I think a few things, but here are a couple I believe to be true:
Brainwashing by both conventional and social media to suggest that everything is supposed to be airbrushed, simple and perfect. Nice shiny pictures and comments which suggest these perfect lives, which are simply not real.
The internet has reduced the impact of social consequences. If you act like a rude idiot with people in your local community, you face the social consequences of being ostracised, potentially physical consequences (being rude at the pub might see you with a sore nose) and you lose the benefits of being within a polite and respectful community. Online you can sit in a virtual room with all the other idiots spread out across the world and be made to feel like you're actually acting reasonably, because of the false sense of security the echo chamber creates.