The Liberals were defeated is the answer to this.
That is because Algeria had millions of French citizens on its soil. They wanted to keep a close eye on these people and needed to fight nationalists who wanted to get Algerian independence while often harming French people, so they decided to keep Algeria a colony in order to monitor these people and protect them.
The Kansas Nebraska Act affected the border states because the Kansas Nebraska Act was set in motion a plan that was supposed to decide the Kansas question through a peaceful democratic process.
Hope this helps
It is true. This was called the Trail of Tears.