Sure God refuses salvation to the non elect, he is against their conversion actively..

jn 12:

38That the saying of Esaias the prophet might be fulfilled, which he spake, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed?

39Therefore they could not believe, because that Esaias said again,

40He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them.
41These things said Esaias, when he saw his glory, and spake of him.

God was actively against these people conversion.. vs 40 is plain to him who has eyes to see..