RC4 is actually broken. It's fundamentally broken. As you run it, it's face melts off like the guy at the end of Raiders. It's genuinely weird nobody noticed how bad it was, in a practical sense, until the late aughts.

The 64 bit block size in 3DES (and Blowfish and IDEA) limits how much data you can encrypt under a single key. I think the real "tell" that this isn't hair-splitting is that people don't ever generally talk about Blowfish being "broken", just obsoleted.