This is a misunderstood concept today. We must recover a proper sense of “tolerance”.
Liberals have there version, usually involving something like, in the political sphere today “If you don’t conform to my will, then you are a racist.” In the Church it might be something like “If you don’t agree with my denial of the Church’s teaching on X, then you are a homophobe/misogynist/meanie.” Liberals – and often also young skulls full of mush – think that “tolerance” means that we must accept and even affirm their position, regardless of the ramifications.
I recommend an interesting piece by the talented writer (and Dante scholar) Anthony Esolen. HERE.
What’s not so often acknowledged is that tolerance implies reciprocity from the person whose behavior is tolerated. For tolerance of wrongdoing is freely given; it is an act of graciousness, and not the paying of a debt. Therefore it rests with the offender, at the very least, to refrain from aggravating the burden of tolerance.