You can use existing cold wallets and store them in a secure location; I really don't understand why you need the non-transacting feature for such a long period of time? And I'm not aware of any wallets like that

They're just shitcoins, but I also appreciate Elon Musk for bringing some excitement to the cryptocurrency market. However, I still wish he would create his own product, one with practical real-world applications, instead of these jokes like Dogecoin and Floki...

Utility is essential, but speculative hype can make even low-utility projects gain traction.

You invested at the wrong timing. Almost any token on an exchange experiences growth during an uptrend season, while during a downtrend, almost all tokens tend to decrease significantly in value.