NO. They are not.
The RAT and Republican voters are worlds apart from each other on issues, and that's who create the platforms. The elected RATs seldom betray their voters, unlike RINOs.
The RINOs are little more than RAT infiltrators who have taken over leadership positions in Washington. (why do you think they call them RINOs?)
However, you could safely say "The RATs and RINOs are essentially identical"
So when I vote "Republican," which opposite am I calling for? If it's Cruz, what in hell is Romney even doing in the party? How is it that it's that confused and hapless?
Frankly, I think we're ripe for a game-changing new party, a second party. The Republican party represents Grade B Democrat even when it wins.