Overview shot of the crowd during concert with Melissa Etheridge at Pittsburgh Gay PrideFest 2012. Nationally, there’s no question that pride parades have become more mainstream and family-friendly as more gays and lesbians raise children, and more heterosexuals turn out to watch. With the surge of corporate sponsorships, they’ve become a big business in some cities. As a result, there’s disagreement within the gay community as to what sort of imagery the parades should present.(Courier Photo/J.L. Martello/File) by David CraryAP National Writer Initiated as small, defiant, sexually daring protests, gay pride parades have become mainstream spectacles patronized by corporate sponsors and straight politicians as they spread nationwide. For many gays, who prize the events’ edginess, the shift is unwelcome – as evidenced by bitter debate preceding Sunday’s parade in Dallas.