Lower ball joint to Spindle bolts stuck

Looks like if you put a six-point closed end wrench on it and use a floor jack on it, 'jack upward with wrench at 3 oclock' it should come loose
Watch that you don't lift the car off of the jack stands

Poor man's cheater bar...

Take the upper half of the jack handle off and use it on a 1/2 inch or better yet 3/4 breaker bar.

Your parts don't look all rusted., That's a good thing