Unions are when employees get together to demand better working conditions. The only people who should be afraid of unions are those who hold capital.
Keep in mind these legal protections actually made unions weaker, so be careful about what you wish for.
People with large capital don't need to collude - they already have tons of power as individuals :)
It's like the term "free market" is a thought terminating cliche or something.
1. Your opinions are not useful or valuable.
2. The company is poor at adapting good ideas through existing channels.
In either case you should leave the company and find another one.