However, there are quite a number of things called “abomination” in the OT. I had one for lunch on my burger. Bacon, yum.
“These six things doth the Lord hate, yea, seven things are an abomination to him: haughty eyes; a lying tongue; hands that shed innocent blood; a heart that deviseth wicked imaginations; feet that be swift in running to mischief; a false witness that uttereth lies, and he that soweth discord among brethren.”
IOW, homosexuality is hardly unique in its being referred to as abomination. So are many other sins. And quite a remarkable number of things that few today consider sins at all.