i think you mean thesaurus
No. Because a thesaurus implies that these are all synonyms for gay. NONE of these are synonyms for gay.
No. This poster means BIGOTS are saying that these words are synonyms for gay. The poster is telling you get a dictionary to find synonyms for “heinous” and such that aren’t “gay”.
But dictionaries are used for definitions, not synonyms.
To clarify, I used “dictionary” deliberately. My intended point was that the bigots using “gay” to mean “heinous”, etc. need to look up “gay” in a dictionary to learn that it does not, in fact, mean any of those things.