It seems like, at least in online places like Reddit, "boundaries" has become this magical, get-out-of-jail-free word that justifies people to short-circuit norms and socialization and just do whatever they want in human relationships. "I want to do X, and I don't want to do Y, and I don't want my partner calling me out for doing Z. If you don't like it, that's your problem, and if you object, you're crossing my boundaries and are in the wrong!"

Before, it was just "being selfish and anti-social." Now, the same thing is called "setting healthy boundaries for myself."

To be fair, plenty of boundary setting is legitimate. I find that hypocrisy is an excellent tell for when someone is misusing the principle. Eg. when someone says "I don't like it when you talk about this subject" and then proceeds to bring up said subject all the time when they have something to say about it.

What exactly is wrong with being selfish and anti social? Most of yalls employers are selfish and you still work for them.

Max Stirner's ghost just smiled somewhere

Amen. I had a long and damaging relationship with somebody who did exactly what you describe. Used "boundaries" as an excuse for being a toxic human being, as many narcissists do.

A good test of the boundary-setter's true nature is whether or not they find alternative means of doing the thing or if they are just claiming "but muh boundaries!" to excuse their lack of being a decent human being.

If their "boundaries" prevent them from showing up at a funeral to provide a moment of comfort to the survivors of the deceased... well okay. There could be valid reasons. Suppose funerals tend to induce suicidal ideation in an individual. Certainly nobody would suggest that individual should risk a suicidal episode.

But, is the person finding an alternative way to show that care? Flowers, letters, a visit at some other time? Or are they just narcissisticly using it as an excuse to avoid spending time for the benefit of anybody other than themselves?