Both sides are violently trying to force their beliefs on everyone else, and both sides think they're right and anyone who doesn't believe the same things as them is outright wrong and deserves to be destroyed.
Anyone who doesn't take a side, is basically considered to be worth nothing, and either mocked or considered as bad as the enemy.
The sheer amount of HATE that flows out of the US is mind boggling.
I guess it is possible that genuine consensus in these groups has lowered in quality, but I personally can't believe that, communities I've been in for awhile changed and got very intense within the last 3 years. It's unfortunate to see.
However, recent events have proven that (short term) political success can be attained by pushing the edges. Now, instead of parties following the relatively centrist positions of the majority of people, they are actively pushing more extreme agendas, pulling people away from the centre (using various propaganda techniques), and locking large blocks of voters in behind positions quite distant and clearly distinct from those of their opponents. The success of this approach seems to be predicated on creating ambiguities, obfuscation and false dichotomies. I’d suggest that many fervent followers would be unable to correctly articulate actual policies of their parties vs repeating glib partisan mantras.
Or at least that’s how it seems to me.
It hasn't, at least in the way you describe.
> In the past it used to be about “chasing the centre”
It wasn't, at least not anything like recently; that turnout determines elections and even unaffiliated voters are just as consistently partisan in how they vote as party loyalists has been well known by both political scientists and political campaigners for decades, and deeply integrated into political strategy; it's he reason behind both GOTV efforts and selective voter suppression, neither of which are new elements of the political playbook.
> Now, instead of parties following the relatively centrist positions of the majority of people
They don't do that because there is no such thing. Distribution of political opinion doesn't have a central peak.
But I'm not talking about "political opinion". I'm talking about "common sense" (reflective of things that may lie at the core of policies devoid of partisan spin). For example, according to a recent poll [0], a significant majority of Americans support immigration. A visiting alien might think that a consensus policy position could be achieved based on a result like that. Clearly however, that's not the case in reality. Similarly for background checks on gun buyers [1], yet, like immigration, it seems that when couched in absolutist, us-vs-them rhetoric, bipartisan policy is totally out of reach.
[0] https://www.nytimes.com/2018/06/23/us/immigration-polls-dona... [1] https://www.reuters.com/article/us-usa-guns-poll/over-90-per...
The SF libertarians that always show up for these threads think they'll get swept up with the tide of the elite despite not comprehending that even with their wealth the majority of them are orders of magnitude off from the even most basic of antes.
[0] Although not well-known enough. Good starting points might be the Chomsky's political books (they're extensively referenced - don't just take his word for things, read his sources too), and Scott Noble's documentaries: http://metanoia-films.org/