Inborn means that something is a part of you, that it is natural and normal for you to have it.
The righties are the conservatives in the United States. They believe in traditional values and they support the conservative agenda.
Lefties are people who are politically to the left of the center. This means that they are more likely to support things like socialism, communism, and radical left-wing policies.
The word "clearest" is often used to describe something that is easy to see or understand. When you say that something is the clearest that you've ever seen it, you mean that it is the most clear that you've ever seen it.
Hitters are people who play baseball or cricket. They are usually the ones who hit the ball with the intention of making it into the other team's field.
To encounter something is to find it. When you encounter a deer in the forest, you are finding and experiencing something new.
A righty is someone who is right-handed. This means that they are usually more comfortable using their right hand than their left.
A gatherer is someone who collects things. They might collect things like eggs or flowers.