The unfortunate fact is that people ARE working to kill the president and his family every day. He deserves every bit of protection he gets. If the left had bitched about the gas mileage of the presidential limo when Bush was in office, you might have a point. But they didn’t, so you don’t.
Everything we do presently, whether it be welfare, food stamps, billion dollar bombers, 3 meals a day for “poor” kids in schools, six figure salaries for almost all bureaucrats above the entry-level, etc. are unsustainable. That includes the current level of ostentatious living for the president, vice president, cabinet, supreme court justices and congress. If you had an inkling of how they live you’d probably agree with me. We cannot go on like this. We can safeguard them without anywhere near our present spending. For instance, why does Michelle Obama need a high-paid staff of almost 30 people? Throughout history, most first ladies had NONE at all. Jackie Kennedy paid her social secretary out of her own pocket, IIRC. Mr. Lincoln ran the entire Civil War with two clerks, also paid for by him. Did Nancy Pelosi need better transport than President Reagan had?