Callt he turn. You have a strong hand that beats some of his value bets. We cant only play str8s and flushes here since we will have that so rarely.

For that size calling is the only play, folding is too weak because as Prostaker says, we beat some of their value range, and raising is bad because we are typically only called by better. If behind, we also have re-draws.

If we assume you're raising all sets on the flop, then you're folding way too much.

KQ beats some worse two pairs he has in his range, plus there's bare Ax flush draws and Jx with a pair he barrels with. The bet size is important to note here; he's only gone for half pot which should set alarm bells ringing that he's not so strong on a board which can turn to shit with many rivers killing his action or leaving him with a second best hand. Not to mention we will fill up close to 10% of the time on the river which helps a lot.