That's convenient, but there's not much support for it. For example, abuse, exclusion, widespread discrimination against minorities and women is well-established. It's just a lazy argument - called reactionaryism - to deny it all without offering a better solution.
I think most reactionaries know they are wrong, and know that analysis and solutions on the left are probably accurate and optimal, and then choose to let people die or suffer rather than do any hard work or stand for anything. Look at Kennedy denying measles as significant.