Why do republicans still believe that obama was a non american citizen muslim when all evidence points to the contrary?

"All" evidence may be an overstatement.

Why was Obama's official birth certificate copy on the government web site made up of layers as if it were a composite Adobe document. That does not make sense for a copied document.

Why is there another birth certificate from Kenya for the same person?

Is it coincidence that the person who "located" Obama's Hawaiian certificate dies in strange circumstances? His grandmother died right around election day in 2008 as well. His other grandmother, in Kenya, said he was born in Kenya.

Why did Obama say on the flyleaf of his book that he was born in Kenya? Why is his passport information locked away. Why do people he should have been educated with claim to have never seen him?

Sorry, but there still remains a suspicious number of unanswered questions.

Republicans live in a reality based on "alternative facts".  There is no such thing as "evidence" or "facts", just confirmation bias and strict adherence to the wishes of their cult leader.  FACT!

Come on, everybody knows Obama is an Alien Muslim.

Barak Hussein Obama is one of the worse presidents we have ever had.  Where he was born is tangential to this fact.

Because they're ignorant racists who simply just try to tar anyone they disagree with ideologically for irrational reasons.

Running out of trump things to cry about?

Republicans only believe what they want to believe.