The True State of Love
It is possible to restrain from getting angry; to be impartial.
I do not think it is possible to so easily attain the state of loving everyone. It could be that your thoughts are oriented towards attaining it. It is hard to believe that a human being has reached it, especially in current day trends. Unless you become totally divine, you cannot be affectionate towards everyone.
But it is possible to be without dislikes. It is mastering of the mind. It is possible to restrain from getting angry; to be impartial. All these can happen by human Endeavour. But I do not think that loving everyone is possible through human efforts.
Only if the heart melts and become mellowed, is this possible. This stage is beyond everything else. Your love will have the same intensity towards a child and an old person and to enemies too. This is the true state of Love. Extremely difficult. But being without dislikes is certainly possible.
God is beyond good and bad and so He does not concern Himself with whether we accept him or not