Your questions contain false premises. The bill including a health insurance mandate WAS introduced by the Republicans and had 21 co-sponsors in the Senate:<quoted text>
It was? Then why didn't it receive any support? Why was it never introduced as serious legislation by the Republican party?
"In November, 1993, Sen. John Chafee, R-R.I., introduced what was considered to be one of the main Republican health overhaul proposals: "A bill to provide comprehensive reform of the health care system of the United States."
Titled the "Health Equity and Access Reform Today Act of 1993," it had 21 co-sponsors, including two Democrats (Sens. Boren and Kerrey)."