Human sexual behavior is Natural, but some sexual behaviors are not necessarily Normal.
The definition of Natural is:
Being in accordance with or determined by nature. Example: Natural impulses.
Definitions:
Normal is the common pattern of behavior found among the majority.
Abnormal is the common pattern of behavior found among the minority.
The U.S. population is approximately 92.9% heterosexual and 7.1% lesbian, gay, bisexual, transgender, or something other than straight or heterosexual, reference below.
Heterosexuality is normal
Homosexuality, lesbian, gay, bisexual, transgender, or something other than straight or heterosexual is abnormal
Before you get your panties in a twist, consider the same sociologically speaking analysis of pet ownership, dogs vs cats.
The U.S. pet ownership is approximately 60% Dogs and 40% Cats
Dog ownership is normal.
Cat ownership is abnormal.
REFERENCE: WASHINGTON, D.C. -- Gallup finds 7.1% of U.S. adults identifying as lesbian, gay, bisexual, transgender, or something other than straight or heterosexual. The percentage has steadily increased since Gallup first measured LGBT identification in 2012.
NOTE: There are approximately 70M (60%) dog owners and 45M (40%) cat owners in the U.S.
All: I Hope you enjoyed this ad-hoc lesson in Philosophy 101 (Logic) and Sociology 101 (Human Behavior) as much as I did
Indeed heterosexuality is normal. However it is important to differentiate between normal and good/best. If someone wants to fuck butts or grow artificial tits as opposed to having children, it's neither here nor there.
The bad and evil comes from the recent push to make everyone believe being lbgtqwtfbbq is normal. While being so is fine, it is objectively abnormal. In a world where being a sexual deviant is even praised by almost every powerful organization, these people do not have the strength of character to own their abnormality, and instead must bend the world around them and groom people into being weird like them in order to feel safe.
Owning your own weirdness is part of being a functioning adult. If you cannot do that, then stop being abnormal. Don't force your shit on innocent kids and people who don't want it.