Because Obama is a Marxist wanna be dictator. The policies you described, though undesirable, are hardly going to destroy the country. Obama will. He is doing this through Marxist supreme court justices, regulatory violations of the constitution, criminal justice department policies, violations of voting privileges, and worse. No Republican advocates anything remotely like this.
If I understand you correctly - you personally do not object to a large overbearing Federal G’ment - As long as it is run by your party?