Wiki - The paradox of tolerance states that if a society is tolerant without limit, its ability to be tolerant is eventually ceased or destroyed by the intolerant. Karl Popper described it as the seemingly self-contradictory idea that in order to maintain a tolerant society, the society must retain the right to be intolerant of intolerance.
So 30%+ of America is intolerant by your measure? Seems awfully high. That’s the paradox of tolerance. The more you tolerate intolerance, the more it spreads. It’s insidious.
Personally, I think your measure of what is tolerant and intolerant is not quite right. It’s beliefs and actions that matter. You seem to tolerate beliefs, even if intolerant, so long as the actions are within a framework you don’t think is acting intolerant. That framework will get pushed to the limit, then stretched, then breached. So, despite a different definition, the paradox applies. Allowing the intolerant to amplify and spread their views should not be tolerated. They won’t follow the rules in the marketplace of ideas. They don’t argue in earnest. They spread hatred and it grows. Tolerating the intolerance, not correcting it and calling it out allows it to grow. That is why intolerance should not be tolerated.
