Oh, as an independent Pentecostal evangelist who has done graduate study in the Bible when I worked on a 2nd Master's degree at Oral Roberts University, I can even get into a more detailed discussion about what the sin of Sodom really was.
If one does a word search for "Sodom" in an English version Bible or even one for "Sodom" in a Hebrew Text Old Testament and in a Greek Language Bible, he will only come across one time where the sin of Sodom had any connection whatsoever with sex and that is in the 7th verse of the "One-Chapter" Epistle of Jude.
A somewhat literal translation (with added interpretation without changing the meaning) of Jude 7 is "Like the angels who rebelled against God, the (people) of Sodom and Gomorrah and surrounding cities chose to have sex with prostitute of the opposite sex." "Fornication" is the translation of the Greek word, "porneia," which is "sexual activity done by prostitutes." And, the text more or less says they did it by "going after strange flesh." Well, "strange" is the translation of "heteras" which is a Greek contextural spelling of "hetero." And "flesh" is the translation of the Greek word, "sarx" which in turn, is the Greek translation of "basar." "Basar" (literally "shame") is a Hebrew euphemism of genitals and politely means "gender."
The Hebrew language did not have vowel points added to it until well after the time of Jesus. If you read the Hebrew Bible text where the word "Sodomite" appears in English Bible translations, you will see that the actual word refers to a "holy (person)" involved in a religion which is not Jewish. When the very same word, kodesh (actually spelled with 3 Hebrew consonants, K, D, and Sh and no vowels), is used in other locations, it is either a verb, to "be or make holy," or a noun, referring to a "holy" person, place, or thing. In each of those situations where the context has no connection with the worship of YHWH Elohim, the "holy" person, place, or thing is connected with Canaanite worship. AND, in each of those places, nothing is even mentioned about the holy person having sex.