If so many atheists truly believe that man came from ape then why don’t any of them want to marry a gorilla?

I cannot marry a gorilla because it is against the laws of the country I live in and I do not have the money to go to court. Lots of Catholic christians sin all the time then go to "Confession" and sin again the following week. Not all atheists misbehave I try to behave properly and treat people as I myself would like to be treated with loving kindness.