Papa Funk's Campfire Chili

3 pounds lean ground beef (80% lean)
1 pound bulk sweet sausage
2 (29 ounce) cans tomato sauce (such as Hunt's®)
1 (40 ounce) can dark red kidney beans, drained and rinsed
4 Roma (plum) tomatoes, chopped
4 stalks celery, chopped
2 green bell peppers, chopped
1 (15.5 ounce) can light red kidney beans, drained and mashed
1 (15.5 ounce) can white kidney beans, drained and rinsed
1 (12 fluid ounce) can or bottle lager-style beer (such as Yuengling®)
1 sweet onion (such as Vidalia®), chopped
1 red bell pepper, chopped
2 (6 ounce) cans tomato paste (such as Hunt's®)
2 (4 ounce) cans diced green chile peppers (such as Old El Paso®)
1/4 cup chili powder, or more to taste
4 chipotle chile peppers in adobo sauce (such as Goya®), chopped
3 tablespoons adobo sauce from chipotle peppers (such as Goya®)
3 tablespoons ground cumin
2 tablespoons barbeque sauce (such as KC Masterpiece®)