

It isn’t, actually.
Contrary to what people seem to assume, putting up minor obstacles to prevent suicide has been scientifically proven to be effective at reducing suicides not only at that specific location, but in the general area (meaning people don’t just find another way to do it).
Suicide is generally an irrational, often spontaneous act. Suicidal people are, in the vast majority of cases, not thinking clearly. Requiring someone to engage their brain enough to come up with another method of suicide often makes them also question whether they actually want to do it or not. Having a big open fall on the other hand, offers a quick, convenient escape that someone who is feeling overwhelmed or desperate might be tempted by, even if they wouldn’t do it if they had to actually make a plan.
Empirical evidence suggests that restricting access to certain suicide methods is highly effective at preventing suicide, prompting the construction of physical barriers in many high-risk jumping locations. However, some have argued that these measures are too costly and only lead to method or location substitution.
A related concept, requiring guns to be kept in nested containers where you have to open multiple layers has been shown to reduce road rage incidents. Every additional barrier provides a chance for you to remember yourself. And having an easy means of suicide around the house (such as a gun) increases suicide rates. People are not computers.
If you ask me (or the scientists who have studied this), any large drop like this ought to have nets, and people on the internet can whine all they want about it.










What it comes down to is a matter of trust. For example, let’s say there’s a strike going on and management makes a generous offer, but it would only apply to the senior employees. If the union accepts this, then the newer employees will feel like the union is only working for the people who have been there longer, and are less likely to take risks or stick their necks out for the “common good,” because that “common good” seems to benefit some people more than others.
Now, with the workers divided, they have less power and less ability to resist whatever the company decides. In time, even the senior employees may end up worse off.
However, I do agree with you that you don’t have to do everything at once. Small victories can serve as a proof of concept, showing tangible results of organization. But there’s a difference between a small victory that’s shared or fair and a small victory that only benefits part of a coalition and serves essentially as a bribe.
In the hypothetical of “freeing half the slaves” it’s kind of impossible to answer from a purely theoretical standpoint, it depends on the specific conditions. If the level of trust and political consciousness is high enough, then the ones who benefit can be trusted to keep fighting for the others and the others won’t feel betrayed or left behind. But if it’s a fledgling coalition and opportunists are present, then it’s a recipe for the whole thing to fall apart.