I think OP got his/her cryptocurrencies stolen in Coinbase so OP is really mad about it, I can't really downgrade what OP is feeling right now, that's a lot of money lost so what I can offer is just prayers of some sort to help OP get through this and not make his experience a summation of what cryptocurrency is.

Riiight, because scams and theft never happen with Eur or USD.

Silly rabbit.

I don't know what you have experienced. But There are so many experienced members of crypto in here. If you share everything they may give you some kind of advice that may help you in future. Don't hesitate to share everything.

despite the scams in crypto, the adoption is faster than what we may think. when they say BTC is the future that would all of us will adopt crypto it won't exclude those with bad experiences in crypto.

learning from bad experience is what we are good at. we are still a decade early in this adoption.

You are disappointed, but you should look at the bitcoin chart and you will notice that the price drops a lot and can stay low for months or years and only then starts to go up a lot, so trust that it won't go out of the game anytime soon, for this volatile market it's normal so calm down have a cup of tea then go to bed don't remember and don't look at those awful numbers.

I see you are really disappointed at what happened between you and Coinbase, but, you cannot let that hold you from using and enjoying the benefits that crypto offers. In one way or the other, we've all lost something. I've experienced this before (not just once) and that is why I stopped trusting centralized exchanges. IMO, just chill out. Give yourself time. And when you come back, try your best to avoid centralized exchanges. If you trade there, withdraw and store it elsewhere, I don't count centralized exchanges as a place to store funds. It's just for the trade. After you've done your trade, move your funds out. Sorry for you loss, you really can't help it that much. But maybe, if you tried dragging them on social media, they will respond and confirm it (who knows). Just breathe.

We'd all have a bad experience and market disappointments. There is a time to relax and stay away from the crypto world, many times I'd come up with that decision but later on, I'd come and start to buy some coins. That is really how the life's going on, and have to accept that. Maybe this is not the right time for you or this was not the right place either. I'd come back to crypto again because that is what I feel and I corrected my mistake already which I think you should have to that at as well. Or to leave forever.

If the OP will give up now, he may not see the true benefits of using crypto. He had bad experiences but it is his decision that made those bad experiences. If he will learn a thing or two from those experiences, he can use it to his advantage and get back those losses. Maybe there are other facets of crypto that he will be lucky.

Is it because you got hacked and don't want to touch crypto again? Imagine being able to recover from that feeling and understanding that there are just bad experiences in your life that are not permanent. What you could do is make sure that it is something you understand and not hate.

So you think that it's always going to be "Cash is King"? What about the parts where they are printing unlimited money without any supply cap? Why would people go to you first?