It’s possible to be social with people who hold opinions you disagree with. Being social and recognizing or even celebrating our shared humanity does not require having the same opinions and ideas as the other person.
yes, but that means that hope is not lost yet. for me, all hope is lost when people stop listening if i said something they disagree with, even if i follow up with something they do agree with (which is usually my tactic in this case, find common ground, and then expand from there). to be social with people who disagree requires both sides to want to continue the conversation. both sides need to believe that having the same opinions is not required. if they don't want to continue then i can try as i might, but at that point hope is lost.
You can also simply chose not to talk about controversial topics where you suspect such deep disagreements might lie.
In my experience the only way to really connect across those divides is to first have a long history, months or years, of productive and positive social interaction. But you don’t get control how others think and feel, even if by some theoretical measure, your position is “right”. So even under the best of circumstances you just have to accept and resist that others think differently.