Why is it not possible to lay out your arguments honestly and let people decide on the merits?
It takes so much work, so much criminal energy, so much money and campaigns, to divide people. Whereas the opposite, people getting to know each other and working together, happens "by itself" all the time, for the most banal of reasons. Just give them some time and space together; no lobbying required, no bribes or blackmail, no psy-ops; just our innate desire to live and let live.
Humans who prey on humans are sick, it's as simple as that. Humans who don't want to stand up to humans who prey on humans may not be sick, but they're not our best, that's for sure, and they must not be our gatekeepers or our compass.
The problem with your idea is that you see "humans" as some kind of abstract unified whole. People care about their peers far more than they do about "humans" in the abstract. When you're a powerful venture capitalist, these peers are other venture capitalists for example. Some call this "class consciousness".