You're right, we should be conserving values that have been developed and stood the test of time for hundreds or thousands of years.Conservatives shouldn't just mean conserve 100 year old values. Demographics are changing and the conservative party needs to change as well
Humanity has known for THOUSANDS of years that free speech and debate are critical to a healthy society.
Many other basic concepts of western civilization are just as important.
What "new values" should be conserved? Nihilism?