Real Republican = someone who can never win an election.
I changed my registration from Democrat to Republican @ 16 years ago because no elected Democratic officials spoke up for my interests on national security. They were all pro-Communist and anti-American. The next to last straw was when Senator John Glenn endorsed the "nuclear freeze" in his 1984 presidential race. The last straw was when Reagan's UN ambassador, Jean Kirkpatrick, changed her registration from Democrat to Republican for roughly the same reason.
And, when I was a freshman in college in 1968, as chief of the Eugene McCarthy presidential primary campaign in Santa Cruz County, California, I got about 10-20% of all the Republicans in the county to change their registration to Democrat to vote for McCarthy due to their opposition to the Vietnam War. That was the _only_ way they could vote against the Vietnam War, because Reagan was governor and the sole GOP presidential candidate, running as a "favorite son". The re-registration campaign I devised and operated gave Santa Cruz County its first Democratic majority since the Civil War.
Political parties need to be big tents to win - everyone has to feel they have a voice which will be heard, and that some elected officials from their party represent their interests. That way they'll stay in the party and vote for candidates of their party who they disagree with on issues.
But when the only voices they hear from their party's officials are all against them, they'll walk. That's how I got _thousands_ of Republicans to become Democrats in ten days when I was 18 years old, and why I'm a Republican now.
The RINO term is used by people who can't win elections.
Usually RINO = Republican in name only.
Real Republican = someone who adheres to the party platform, such as being pro-life and anti-taxes.