No, I'm sorry but that's absolutely false.
One party places anti-immigration rhetoric that completely contradicts the experts' understanding of immigration policies, from experts with all sorts of political backgrounds.
One party denies the entirety of the fields of climate science, environmental science, and has no trouble entertaining Creationist ideals that reject the entirety of the field of biology.
One party rejects our current understanding of policies that reduce violent crime, and incarceration. The other one at the very least has an internal dialogue where positions are based on known statistics.
This repeats itself on and on. The fact that there are people who reject our current understanding of topics on all political sides doesn't mean that there is one party whose political interests are completely disconnected to the point where there are no real internal arguments for logical cohesiveness.