I don't necessarily think these biases are intentional as much as they are simply a product of internet training. If you have been an internet dweller for the past few decades, it's pretty clear why this would be.

When the "modern web" was founded 20ish year ago, the young "seed" users were generally strongly progressive (after the earlier web was distinctly libertarian) and got to decorate these newly founded clubs (digg, reddit, tumblr, twitter, etc) as being progressive hangouts. Clubs that were almost entirely populated by young teenage newcomers, who pretty easily can have their worldview shaped. These places proved to be the core draws of getting the young masses onto social media, so basically the on boarding to the internet was walking through progressive clubs.

Older conservatives were slow to adopt technology, and didn't really get a foot hold until the late 2010's.

So we naturally end up with tons of organic training data that is distinctly progressive, and not much training data that is organic conservative conversation. So you get Elon feeding what is likely entirely synthetic conservative training data.