God has shown His love for all by sending His Son. What greater example of love needs to be shown? Because people reject it, does not negate His objective love which is shown through His Son. His subjective love, however, is another thing altogether, that which only the elect experience. So, God does love all, although all do not experience the love subjectively.

Hisalone
Matt. 6:33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you. KJV