There is nothing wrong with being suspicious of change. However, when suspicion turns into denial of the logical progression of society and that denial turns into action to reverse that progress, then there is a lot wrong with that.,,,,
Conservatives conserve tradition, the status quo. They seek to exclude what is different. They are resistant to change and regard it with suspicion. Any questioning they do is with the aim of intention of reaffirming the rightness of their beliefs.
Liberals, on the hand are always questioning, open to change, questioning tradition, even trampling it, pushing the envelope in who we include as the “us” that conservatives later conserve. The danger here is the tendancy of liberals to push too far too fast.