No need to insult other people, especially when you don’t even understand what they wrote.
there are dedicated industrialists or dedicated industrialist corps with all the tools, skills, logistics to build and move those ships more easily than a single player not oriented into industry.
Those are more able to build those ships and move them to Jita. The way CCP changed the industry side means that some people build them while others people buy them. Just like some people are better skilled at mining or doing pvp.