Just FYI, most of us left wingers are not like that. It does help listening to people.
The important thing imo is finding common ground. Keeping an open mind, but with firm boundaries: as long as both sides can agree on being civil to each other, and protecting human rights and liberty. Do not ever yield from those, however the other might try.
As long as that applies, I don't see why one couldn't be friends, or at least acquaintances.
But that said, this has become increasingly more difficult. It feels odd to ask this, but I figure it'd be best to ask from your side - you might know more. Maybe you have experience, maybe not.
When talking to far right wing people, what would you say helps best in deradicalising them? And when talking to right wing people, what would help them in seeing my point? The great rift of polarisation due to the growth of the far right I see currently in the world, is a danger to democracy. So I would like to do my best to reduce that.