Please explain what deal in 1973 (your not talking about the 89.9% who voted to remain in the UK are you??? - Nationalists, including the SDLP boycotted it) was better than the GFA? Or do you mean Sunningdale which the Unionists brought down at the very thought of heading towards equality for nationalists.
"The agreement was signed at Sunningdale Park located in Sunningdale, Berkshire, on 9 December 1973. Unionist opposition, violence and general strike caused the collapse of the agreement in May 1974."
Peaceful revolution is a bit of a contradiction in terms. Evolution perhaps.
In this country given that it ended with an unconditional surrender, would you deem 1916 Rising to have been a complete success, a complete failure, or somewhere in between?