It's simple, ANON Coins violate Anti-Money Laundering Laws in countries like the USA.
The possession of gold and silver and cash must then also violate those laws. Hell, the possession of a good idea must be illegal in that country ! After all, that good idea is worth a lot of money, and it doesn't tell where it comes from ! If everything that is worth something, and is not intrinsically traceable to where it came from, is illegal in that country, then that's quite a non-free country, isn't it !
About time to take up your civil responsibilities, and fight such oppressive regime, no ?
On the other hand, if you want to be a 100% fully law abiding citizen, that tries to please the state and the law, stay out of crypto, and use their fiat. Crypto has nothing to offer to you. You even see that a totally non-anon and fully transparant coin like bitcoin has led people into trouble. So you should change your phrase: "it is simple, crypto violates the anti-money laundering laws". It is BTW exactly to fight those laws that crypto was invented. Because those laws take away a fundamental freedom: the freedom to trade.
I don't really agree with the premise that anonymous coins are automatically illegal, exchanges can still have KYC and trade limits for buying anonymous coins, then the inter-trade of the coins would be anonymous, just not the entrance and exit points from fiat.
Gold and silver are pretty difficult to buy from a respectable place without providing any ID. The same is true of cash. All can be traded anonymously after they have been bought, just like Monero/Dash.
Dash - the digital trash isn't anonymous.