I think the idea that all viewpoints are equally valuable and need to be given equal weight or volume in discussions is incredibly fallacious. Left wing ideals are backed by a multitude of research as well as ethical and moral philosophies. I don’t know how you could be a leftist and say “what this place really needs is more right-wing voices” with a straight face. The whole “im just asking questions, everyone deserves to be heard, i just want to hear both sides of the argument” is a common tactic the right uses to try to seem reasonable and propagandize more people. Some ideas aren’t worth hearing out and can only do damage to those who listen.