Maybe an advanced version of the translator could translate ideological positions as well as literal language. A conservative person conversing with a liberal person could have their "I don't believe it's my responsibility to subsidize others' healthcare" instantly translated to "I think healthcare should be federally funded from tax revenue".

This is terribly inaccurate - we have to remember to step outside our tech bubble and understand that in-person interactions are drastically different than comments on facebook or the web. I can despise people's views and like them individually.

Nobody here is saying that the ability to communicate is a sufficient condition for interpersonal understanding; it is merely a necessary one.

There is an even greater divide between the US and cultures who don't speak the same language: Mexico, Russia, China, etc.

Perhaps you think this because the divide between US groups is more legible to you.