Favorable terms with no means of legal leverage are just wisps of air. They can and will be rescinded at the earliest convenience of the corporation, which is literally why we're in the current situation we are today. The strongest middle class in the US existed when unions were at their peak. That is not a coincidence.
A formal, legal union gives employees power and leverage to enforce the favorable terms that they negotiate with an employer. You can argue that unions as organizations can be subject to similar corruption as any other organization, but contrary to popular propaganda, there is nothing inherent in the existence of a union that requires or lends itself to corruption any more than any other power structure.
Employees are legally permitted to organize a formal, legal union of their own outside the existing union organizations, but then they're starting from scratch. Existing unions have been through negotiations, have experienced lawyers, know the process and all of its pitfalls. The vast majority of workers are better off joining an existing union because of this.
"Means Matter"
https://www.hsph.harvard.edu/means-matter/means-matter/
Reducing access to more lethal means of suicide reduces deaths by suicide in a population. The data on this is unequivocal.
That's because the majority of suicidal crises are spontaneous and of absurdly short duration, on the order of around 20 minutes. If you interrupt the process between decision and action, people survive. And 90% of people who survive a suicide attempt never go on to die by suicide at any future point in their lives.