Your comparison doesn't make any sense. I'm guessing you don't understand the right wing in the US very well.
That far right in Switzerland and you get into neo-nazi ideology, fascism etc. which is represented in the SVP and New Right types.
US conservatives are mostly not like that. US conservatism is a mainstream ideology that represents upwards of a quarter of all Americans. Most are in favor of vastly reducing the size of government (but not reducing the military or spying). Ted Cruz for example is not a nazi sympathizer and rather than in favor of a huge government ala fascism, would prefer to cut it in half. Fascism favors dramatically increasing the power of government, and the power of government over the economy; US conservatives typically are against that (even if it's not very well represented in the politicians).
In America, neo-nazi types, the KKK, skinheads etc have practically no power or representation in politics, they are fringe outcasts that are not accepted in any major party. That has been the case for decades. Unlike in countries such as Sweden for example, where neo-nazi parties hold elected power.
The Koch brothers are considered far right wing in the US - they're libertarians that believe in high degrees of social liberty, ending mass-incarceration and the war on drugs, and a small government.