Why is it that Republicans think they know what's good for this country..?

There is absolutely no concrete evidence to back up any one of these claims. These are broad generalizations based on secondary information fed to you by conservative opposition. Many of your questions have contradictions (example: Why do they believe that women shouldn't have rights to their bodies, yet turn around and tell them that they can't have abortions?) I'm not even going to attempt to answer any of these questions because you seem like you're venting.