Tech isn't innocent but you can't blame it all on tech either. Polarization has been a thing for decades upon decades. In the US a major shift occurred around the Civil Rights movement, after which Southern voters basically drifted away from the Democrat Party and coalesced towards the Republican Party. US politics has been polarizing along party lines ever since.
IMHO you won't fix it with technology as it runs much deeper. But you can remove comments to sweep a big part of the toxicity under the rug.
If you'd like a good overview of the longer story, Ezra Klein, who just released a book on the subject, was on Chris Hayes' "Why is this Happening?" podcast earlier this week ("Why we're polarized, with Ezra Klein").
IMHO you won't fix it with technology as it runs much deeper. But you can remove comments to sweep a big part of the toxicity under the rug.
If you'd like a good overview of the longer story, Ezra Klein, who just released a book on the subject, was on Chris Hayes' "Why is this Happening?" podcast earlier this week ("Why we're polarized, with Ezra Klein").