If your marketing message is narrow enough, it will alienate a lot of people.
People who won’t buy your product, who will reject you because you don’t say (or sell) what they want.
Narrowly targeted marketing messages will generate a lot of noise, usually by the people who aren’t being targeted.
“I don’t like it.”
“It offends me.”
“They are ignoring me.”
That last statement is usually the most truthful.
People don’t enjoy being ignored, and if your marketing is purposely designed to ignore a demographic, that demographic will make their voice heard.