Your question: "Do Christians have a right to criticize evolutionary theory if they don't actually understand it?"
I bet you get paid to write the spam above. There are over 7 billion persons in the world, some of whom profess to be members of some Christian faith. There is no authority over who among them has a right to criticize any opinion of biology.
There never will be, except perhaps in your mind.
Some persons and the governments they control believe they have an obligation to regulate what people can say or print or think on a variety of issues. In the United States, that is not the case.
If you are serious--a probability event close to zero--you need to clarify what you regard as the authority handing out rights or restricting rights. I suppose that if you are a paid Yahoo! editor, you also can delete what you like, probably depending on your own compulsion to control other people in any way--no matter how absurd or trivial--that makes you feel more secure in your social schema.
But I have no way of knowing; I have just run into it so frequently that it is a clear possibility. Other cases are simply deranged spammers who also have access to software to hack this site.
Selecting Christians as a target out of so many possible demographics is scapegoating.
There is no reason to believe that Christians in particular are less likely to understand evolutionary biology--whatever that phrase means to you--as are any other demographics.
You are also committing a fallacy, i.e., you are demonstrating unreasoning in a well-known way:
"The fallacy of composition arises when one infers that something is true of the whole from the fact that it is true of some part of the whole (or even of every proper part)."
• https://en.wikipedia.org/wiki/Fallacy_of_composition
Some people have no concept of evolutionary biology. Other people do. Just being a Christian does not mean that someone is in the former category.
Take it or leave it:
You would be better off improving your own mind rather than making obscure proposals about controlling the minds and communications of other persons.
If you knew that, you would not have posted your question, for obvious reasons.
You cannot control 7 billion persons. And it does not help you one bit to elicit control freaks on this site. I am sure that the last two statements may be way beyond your ken or interests, or maybe both.
Educate yourself. You will be pleased with the result:
• Where we live:
“Geosystems: An Introduction to Physical Geography” Christopherson, Robert. (Prentice Hall)
• Where we came from:
“Introduction to Physical Anthropology” Jurmain/Kilgore/Trevathan/Ciochon. (Cengage Learning)
• What we have been doing:
“History of the World” Roberts, J.M.; Westad, O.A. (Oxford University Press: 2013)
• Life science:
“Biology” by Raven/Johnson/Losos/Mason/Singer (McGraw-Hill)