This is not true.
What is really happening is that we're saying that people are affected by what is happening outside of them, that events and words and people's actions cause them harm, that they are therefore vulnerable, offendable, hurtable. And that therefore, because they are hurtable, we must aim to not hurt them.
But this completely assumes that it's true, normal, and natural for people to be hurtable. People are not hurtable. Someone who believes they are hurtable are in denial of their immortality. They are being a victim. They are scapegoating and blaming. They are putting responsibility for their life and their happiness into the hands of other people, in an attempt to disown themselves, to BE irresponsible, and to MAKE other people guilty.
If what I say offends someone, that's their fault. If what you say offends someone, that's their fault. If you are offended by what someone else says, that's your fault. It means you are secretly and not so obviously being irresponsible, are projecting ownership and blame for your existence onto others, are holding other people accountable for your happiness, are requiring and controlling other people to be a certain way in order to "make your ego happy", which means you are trying to get your way. It is manipulative, deceitful and controlling.
So what actually ends up happening, is that if someone avoids saying a particular word or doing a particular thing in order to not displease you, ie to please you, this is the ego persona at work. The persona tries to get rid of all unpleasant things by chopping out parts of yourself that it disapproves of, which eventually will leave nothing left, and is actually an attempt to destroy you. People pleasing is suicide.
So while on the surface it might seem like, well, we're being kind, we're taking other people's needs into consideration, we're placating, we're being gentle, we're trying to have compassion, we're understanding other people's insecurities, etc... all well and good, but this isn't AS good for people as to get them to be more responsible for their own existence. If it's up to me to change my expressions in order to not offend someone who is particularly touchy about certain subjects, then who really has the problem? Its the person who is touchy about the subject. They're actually playing a victim game, are projecting fault onto me, are trying to get me to change to satisfy their agenda, and they want me to stop being a certain way so that they can be justified in defending their beliefs.
If we're all going to 'get along' harmoniously, it is only going to happen when everyone grows up and takes full responsibility for everything they are experiencing, even if its fear or guilt or offense or hurt or whatever. It's each person's responsibility. And never is your life anyone else's responsibility. And nobody else is to blame for making you upset. If you want that, go ahead... it will make you weak and even more afraid and vulnerable to believe that.
So ultimately "PC" turns you into a victim. It attacks your invulnerability. It assumes that you are affected by the world and that therefore, as part of the world, everyone else has to tone down what they are doing to you. It's entirely based around a victim mentality. It strips people of their power. It actually disempowers people. It also makes everyone be in DENIAL. You are in denial of yourself because you're trying to not show all of yourself to others, and everyone else is in denial because they want to keep pretending you are responsible for their reactions.
It doesn't make people happier, because all it means is you are not being AUTHENTIC or HONEST toward them, and are baby'ing them, and are placating them and putting on a facade for them, likely in order for YOU to "not get hurt" through your own victimhood. So PC is really invented by victims, for victims, to continue victimization, and has NOTHING to do with helping people to be stronger or more powerful or less hurt or more respected. The ego wants to be respected, because it is disrespectful.
Yes if someone is upset, it may be compassionate to comfort and be gentle with them and empathize and help support them. But what is support REALLY? Support means also reminding them that all the reasons they are upset are not real or true, that they are actually victimizing themselves, that they are doing this all to themselves, that they can become much more empowered by owning up to this, and that there is a better way than to see themselves as affected by someone.
Is political correctness love? No. It's an ego agenda of misery and victimization and inescapable vulnerability. It worships suffering, it perpetuates fear, and destroys people.
Suck on that whether you like it or not.