Some colleagues asked me when I will start a company 'cause they want to join me. My dream of that company is that if a union is even needed, I have failed and that company needs to close.

I understand why some people want unions. I also know about a very long history of unions either completely destroying companies or having a negative influence over them, including the countries in Europe like my own. Long term unions become a parasitic entity that has the main purpose to continue its existence for the profit of the union leaders and nobody else and using all the influence to achieve that goal, even if the host is negatively impacted.