"Toxic people aren't worth the effort to keep them in, no matter how good their skilled contributions are. There can and should be a way to remove them."

This is your utopian ideal - it is NOT indicative of the real world. Sometimes, there are horribly toxic people who are so competent and requisite to a project that their removal would cause immediate and irrecoverable failure.

You made your statement as matter of fact - it is absolutely wrong. There may be times, perhaps even a majority of times that you can simply remove a toxic person - but to state it as the hard rule without exceptions is wrong.