I don’t see that US conservatives (the real ones) ever engaged in that kind of behavior. The Americans that did were typically voters of the Democrat Party, remember.
Also, take a look at Israel. A great deal of the same type of liberal Jews I speak of are engaged in the suicidal notion of “land for peace”, thinking that the “Palestinians” are ever going to stand for the continued existence of the Jewish state. In the USA, voting for a party that dares to remove God from its platform certainly will not show one’s Jewishness.