That’s because we argue about issues that don’t really matter. As long as the federal government is enormous and all-powerful it doesn’t matter what anyone thinks about abortion because Planned Parenthood will get their 1/2 billion and spend millions electing whoever they want. Go down the list and every issue that we disagree on is moot once the Federal government is shrunk.
That was the genius of the “contract with America”. Pick a limited number of issues we all agree on and hit those hard. Put everything else aside.
And expect people who brand themselves “Republican” to work for them.