Do you think it is possible to like all people?

No. Absolutely not. Not in a million years. By they way, did I say no? As you said, most religions teach you to love all people, but I don't think they really mean love. Perhaps a better word for what they wish people to aspire to is more covered by the words like tolerate and respect and get along with. There are many people in the world I don't like even a little bit, but I don't go around publicly denouncing them in most cases. I think this is really what god was more looking after.