This means that being Chad is not what it's cracked up to be.
- Chads have sex, yes. But after the 95647th time, it feels boring.
- Having sex makes Chads feel like gods. But they aren't. So nature treats them like anyone else. They get sick. They fail at things. Sometimes they get beaten up or other shit happens to them. When you think you are a god, all these things are insufferable.
- People hate Chads. Foids in particular desire Chads but at the same time resent the power Chads have over them. So people will try to hurt Chads every way they can, generally in a stealthy, passive aggressive, way.
- Chads will hate each other because they are always rivals.
This is just a partial list, but it shows you that the life of the average Chad is not as rosy as most people (especially most incels) think. Being a Chad has many benefits, of course, and these benefits are very visible, but it also has many downsides and these are not as visible and therefore are often overlooked.
You suicided Chad guy is just one for which the downsides had come to really outweigh the benefits.