I think that most people in the world do want peace. However, since most people in the world have very little influence over business decisions made by very large companies, and peace is essentially the opposite of money, I can't say that I see it as a realistic prospect.
That, however, is quite different from loving one's neighbor, which is an individual question, and each one of us, no matter how poor, powerless, voiceless we may be, has the option of choosing every day to try to truly love our neighbors, both literal and figurative.
We can all try to make choices that do not harm others in any way, inasmuch as we can.
Someone has a thread on here about politeness, and I don't think that's the worst place to start, for those who have not really thought much about it. All things manners and etiquette are really just about trying to make other people feel good, and I think if you start with that, just seeing how many people you can make feel good - and how you do that will be as unique as you are, whether you can make them laugh - which, by the way, is considered a Bona Fide Good Deed in several religions, including the popular Abrahamic Triple Threat - or if you can just make them feel glad that they held the door open for you - or that you were there to hold it for them - go read that thread! It is full of great politeness ideas!
From there it really is just a hop to seeing what else you can do, while you are looking around. Maybe you can't open a school for girls in Africa, or even adopt one child - anywhere - but you could, if you were sneaky enough, figure out how to anonymously pay the electric bill of a single mom or an elderly person you know is struggling.
There is stuff you do all the time, like shop. Maybe instead of going to a big box, you could try buying some of your groceries in a small store, owned by a family from somewhere interesting that you know nothing about. Besides helping them to have more money to send back home, you might make new friends, even learn about a new place, maybe even a new language, which means you can talk to even more lovable neighbors!
And the same goes for services. Once you do a bit of legwork and get hooked up, you can put money directly into the hands of the people who do everything from your yard to make your clothes - yes, even your one of a kind original hand-made bag!
You could go through your closet and pack up a blessing bag to give to Dress for Success or the org in your community that helps ladies who are liberating themselves from abusive situations. Call them. They might also be interested in that service for 8 with the awful orange roosters that poor old blind Aunt Mina gave you for your anniversary!
If you are lucky enough to have a bit more money you don't need for the basics, you could call the local school and find out the name of a child whose parents can't afford to buy him/her a computer, and have yourself more fun than you ever imagined thinking up cool and mysterious ways to cause a computer to become present in front of that child's face!
Maybe you have no money, but you have some extra time on the weekends that you could spend helping out at the local food bank, or similar org - or the school again, and find out who needs a tutor but can't afford one, or just find a park where a lot of old people hang out and go sit down and listen to one of them for a while.
Whatever you've got, whether it's money, clothes, or just yourself, somebody needs it, and filling some small part of some neighbor's need is, I think, a good way to work on loving your neighbor!