I'll go with the next one: Bitcoin is primarily used for money laundering.
That's a good one. You will never see them offer any evidence how much bitcoin is allegedly being used for laundering money.
Bitcoin is a just a tool like any other tool. Because some people use knives to kill people should the government ban all knives?
Similarly should we ban all cars because some people drive recklessly and kill people on the road?
Should we ban cash because some people use fiat to commit crimes? It is a truly stupid argument.