The prevalence of unionization here the US depends on the industry. It's common in manufactoring, transportation, education. Also about 35% of government employees are members of a union. There are professional associations and guilds, not the same as a labor union, that offer health insurance and other services for members. However, here in the US most IT professionals are part of management (we get upper tier benefits without having to unionize), are independent contractors, or work for clients though a 3rd party consulting company that provides benefits. There never really has been a labor movement in the US info tech industry. Many of us may complain about long hours, but that's about it.
"The universe is complicated and for the most part beyond your control, but your life is only as complicated as you choose it to be."