How we treat others is a reflection of our true inner character , according to the golden rule, you do unto others what you'll expect them to do to you, life should be that simple, treat people the way you'd like to be treated.
All humans are built to naturally respect/value one another. Respect is the due regard for the feelings wishes or rights of others. We can not treat others well until we learn to treat ourselves well.
As regards to how well we treat others, this is not a matter of how you treat the people close to you cause there's a tendency of treating those closest to you with love, respect and warmth but a person's true nature is ultimately revealed in our day to day dealings with people who are not related to us. Do you look donw on people when you see them for the first time ?
Subconsciously, people mirror the behavior they are showed, so be careful and not judgmental, you do not know how a person got to where they are. Don't look down on anyone because of tribe, race, religion or any such factor. We are all humans, everyone deserves an equal treat, treat all men equally regardless of who they are. Don't compel people to do what they are not comfortable with, acknowledge the values of others, every human is valuable!
Encourage the idea of others, accept your wrongs when you need to, show gratitude and be appreciative.
The reason some people treat others badly is to feel important themselves, but this also reveals their lack of value for human lives.
For example; The war between Russia and Ukraine is a result of the lack of value for the human life.
You can't grow big by trying to make others small, neither can you get better by making others worse. Whoever feels better when they hurt a fellow human is an insecure person.
Treating people with respects doesn't guarantee that respect will be reciprocated to you, but it makes you a real human. Aside from the inner joy you will get, you are also making the world better.
If we can't help a person get better, we shouldn't add to their pains. Showing love and respect is a beautiful display of strength, wickedness and inhumanity is a display of weakness. Only a weak human treats another human without a second thought.
You will meet with different people daily, some will offend you and hurt you, but you should always see a fellow human as you.
Thanks for reading, I am @adesojisouljay the unique being.
Our actions in life behave like a boomerang, and I agree with you as the way we treat others is a reflection of our true inner character, but it will certainly be the way we will be treated as well, that is the treatment we give to others will be the treatment we deserve.
Best regards, be well.