Conservatives and right-wingers are some of the most bigoted, racist, xenophobic, and selfish people. They hardly care about minority groups, the disabled, etc.
Examples:
Donald Trump wants to exclude refugees based on religion.
Right-wing radical Anders Breivik brutally murdered 77 people in 2011, mostly children.
Phyllis Schlafly fought vehemently against the ERA.
In 1957, Conservative senator Strom Thurmond led a 24 hour filibuster to block the Civil Rights Act.
By charging them extra tax (I'm suggesting double the normal amount), we enforce more tolerance for those less fortunate than us, including the homeless, disabled, and those fleeing poverty in other countries.