The meaning of solitary confinement is placing a person in a small room without seeing anyone for almost their entire day. This technique of punishment is used in many countries, usually in secret because of how inhumane it is, and the damage it does to people mentally.
When staying alone in a room, not seeing people for 99.99% of your week. It can be really devastating. Identity and self-awareness will be lost in the cell. If the results of the affects of solitary confinement were published nationwide, there is no doubt people will be against its use. The US notices how effective it is, and its efforts to get other countries to stop so they have the most effective discipline, shows it.
This harsh treatment still causes suffering even years after being released in the forms of eye deterioration and mental trauma. Solitary confinement should be dropped from use in all nations, as no person would ever deserve it.