If you stood with the left during their anti-Confederate hysteria, you have no room to complain now. That was always the opening shot, the low-hanging fruit in their long-term war against American history. After they're done there, it'll be Texas Revolution figures (Sam Houston) and Andrew Jackson, then onto Thomas Jefferson and Christopher Columbus, and then finally figures such as George Washington and really any other Founding Father that ever owned slaves.
You’re dead on right, especially because naming the Arch after Jefferson was entirely appropriate, since he proposed the Lewis & Clark expedition, got Congress to fund it and authorize it, selected Lewis and Clark to lead it, and it originated in St. Louis. Taking his name off the Arch is a vile obliteration of history.
The next thing the leftists will do is try to change the name of the Kennedy Space Center because JFK’s father supported Hitler in the runup to WW II.
BTW, I like your pen name.