This shit has seriously gone on too long. People who continue to cling to the "10,000 dead crushed by tanks hosed i to the gutter" bs are cranks. It's jews control the banks, chemtrails, the earth is flat, the moon isn't real level of crank shit and unless you're feeling very indulgent and someone is asking in good faith it can be dismissed as equally serious to that kind of crank shit.
There was a “guide” on how to debate tankies on the neoliberal sub. Basically, a tankie will likely cite some author or newspaper article or academic or etc., but if you can’t find any information about that from the Wikipedia article of the related topic, then it’s best to assume the tankie is lying and wasting your time.