In fact, tolerance isn't really anything.
How would you feel if someone said that they "tolerate" you? As in, they're "tolerating" your existence. "Tolerating", meaning that they're choosing to let you exist. The definition of tolerate is allow the existence, occurrence, or practice of something that one does not necessarily like or agree with without interference. So when someone tells you that they're tolerating you, they're basically telling you that they have the power to revoke that tolerance and turn it into destruction. Does that feel good? Does that make you feel safe and respected?
So then why do we brag about being 'tolerant'?
Is it to prove our superiority? When we discuss LGBT+ rights, why are those discussions followed by a trail of "I'm a tolerant person BUT"? People are just hiding their hatred because they know that it is no longer acceptable to flaunt it. It doesn't mean people hate any less. And it doesn't mean that they no longer have the power to harm marginalized people.
Don't be a "tolerant" person.
Be a supportive person. Be a listener. Be a respectful person. Not because you think you have to, because you don't. But you SHOULD have to. You should have to treat every human being with the same basic respect that we are all entitled to. Do it because being 'tolerant' is a lie. It's a gentler way of saying that you don't care. And if you're not going to care, you might as well tell the truth.