Same here. I took photos of those statues. Most people don't know that Woodrow Wilson was a racist and did not support suffrage. Robert E. Lee on the other hand opposed slavery and even freed his own family slaves. Lee also opposed the Confederency and only sided with them because he was loyal to the Commonwealth of Virginia.
Robert Lee was, at best, mildly opposed to slavery. He believed it was a necessary evil, and as late as 1865 he was calling it the best situation for blacks in the South.
Having said that I see no reason why his statue should be taken down. You can find flaws with any and all of the men who's statues grace the campus - except maybe the statue of the Longhorn Band Member.