Captain America is an icon.
He is the greatest leader in comicdom. A man with such force of will, such charisma, such gravitas that gods leap to obey his commands. He is the heart and soul and the unquestioned general of the most powerful heros in the Marvel universe. This man is a stone cold badass in every way, and all without super powers!
so how do you cast the most pivotal character in comic history?
with no audition. thats right, they didnt even audition the douche that IS Captain America. and that douche is... Chris Evans. A man that made a living playing smarmy douchsters. I SAY NO AMERICA!!! WE DEMAND A NON-DOUCHY CAP!!! Make it happen folks.