This sounds like you are promoting an “I’m right, your wrong, and I have no responsibility to correct or educate.” mentality. I’m not sure if trusting the people with opposing views to change on their own is the best approach. I think only deepens divides and entrenches opposition.
People with opposing ideas do exist in a vacuum and will have no problem putting the time in to recruiting others to their way of thinking and promoting similar thinkers to positions of power and influence. Ostracizing those you disagree can just as easily put you in a bubble of isolation, or an echo chamber, as them.
Not to mention that discussing opposing ideas improves understanding both by defending your views and by better understanding the why and origins of their ideas.