I agree with this. But too many people do not.
Too many people have the wrong definition of heroism. They define heroism as "standing up for yourself and not taking other people's abuse/mistreatment/unfairness". It's a very abstract and very problematic definition. Here are the three reasons why.
1. A lot of people (especially young people) see abuse/mistreatment/unfairness where none exists.
2. A lot of people react to what they see as abuse/mistreatment/unfairness in problematic ways. If they just ignore it, it's not a problem. But if they complain about it, it could be a problem. In the eyes of those who agree with them, they're a hero. In the eyes of those who disagree with them, they're a whiny brat. And some will do much worse than complain. They'll lash out at the source of the abuse/mistreatment/unfairness, and because their emotions are running high and their logic is running low or even completely empty, their actions will be worse than the actions of those who committed what they saw as abuse/mistreatment/unfairness.
3. When they lash out at the source of abuse/mistreatment/unfairness, innocent bystanders get caught in the crossfire.
Let me give you a video example from Home Alone 2. It's a Christmas concert, and while Kevin is singing his solo, Buzz is using his electric candles to make Kevin's ears glow. Now that is genuine unfairness, because I don't think that was in the script, so Reason 1 is false-in this instance. Kevin can tell what Buzz is doing, and what does Kevin do? Kevin turns around to face Buzz and pushes Buzz over, not only knocking over Buzz, but dozens of innocent bystanders who did nothing to aid or encourage Buzz in his actions. This makes Reasons 2 and 3 definitely true.
https://www.youtube.com/watch?v=rOpaLChV9d4
Here are some good definitions of heroism that I agree with:
1. Putting your life in danger to save someone else's life.
2. Pushing yourself outside your comfort zone.
3. Exploring new worlds or environments no one else has explored, or trying something no one else has tried before.