There’s still a lack of openness, and even awareness, when it comes to men and infertility struggles — Scott Burkholder lay on his couch, huddled under a blanket, stunned and silent. It was 2018, just a few weeks before Christmas. He had a lump in his throat. Water in his eyes. And a urologist seated by his feet, delivering the news: There was no sperm in his testicles…