Extreme-binary
A person who is absolutely certain, without any doubt whatsoever, that he is only attracted to people of the opposite sex. Synonym — straight. Opposite of non-binary. Used to make ordinary straight people seem more progressive and hip.
Jimmy is so extreme-binary. He likes the ladies— and that’s that. Twinks don’t stand a chance. With all due respect to the LGBTQ community, Jimmy’s just hard-core extreme-binary. Every night is ladies night.
Binary Extremism
Some people are very organized and structured and see the world in a very binary, allegedly logical, way. However sometimes the yes / no binary response is laced with a ranting tirade which defies logic and pushes the binary decision into the realm of ridiculousness. Indeed, the very goal of a binary person being able to make clear decisions becomes clouded when binary extremism takes over, and the person's opinion, decision, argument etc. is rendered moot.
My normally logical co-worker often lapses into fits of binary extremism when annoyed by a customer.