Wow, you wrote that almost exactly 100% how I feel. I don't have all the answers, I feel like Jefferson was a great American....in some respects. In others, he was a piece of shit. Owning someone else as property, thru a modern lens, seems so outrageous, so horrendous, but in the context of society during the 1760s-1860s, it was perfectly acceptable in the culture.
Is Jefferson an incredibly important part of the birth of America and one of the most influential Americans of the Revolutionary era? Absolutely.
Did Jefferson participate in a system that was asinine and inhumane? Absolutely.
Should we teach Jefferson and laud his accomplishments? Absolutely.
Should we build statues and monuments to people who treated another human being in the same vein as a tractor or an axe? Absolutely not.
But what's the answer? I don't have it.
With Confederate monuments and the like, it's cut and dry to me. They fought against the federal government for the right to own slaves. When our country finally woke up and realized how terrible the practice was, these generals and Southern leaders decided to wage war bc the federal government said they couldn't expand slavery out west. It doesn't mean every single soldier who fought for the Confederacy was a bad person, most soldiers weren't slave owners IIRC, but it does mean they shouldn't be celebrated. Most statues of the Confederacy were built during pushes for civil rights, in the early 1900s and then the 1950s and 60s so it's obvious what the intent was there. So take them down, rename schools, etc.. (In a civilized manor. Mob justice is never the answer)
But founding fathers are a different, way more complex issue and as a society we should decide how to proceed.