That's quite funny to state "Let's forget about the price." People won't forget about the price, especially those invested at around $20k. However, it's a good cure to forget about btc at least temporarily until the winter ends. Somme rest and inspiration would be great for everyone.

Bitcoin is not scam. At least it's supported by the blockchain technology. Bitcoin is very manipulative, but this doesn't mean it's scam.

How is it possible to become btc bankrupt? Bad trading or what?

Whales know when to buy and sell btc better than most of the players, but everyone has a chance to buy and sell. The price is the same for everyone.

Electricity consume % may be far-fetched. And even if it doesn't and mining ends, btc will still be used.