In the stock market there are always volatile assets that are commensurate with crypto assets. There will always be stocks that can change in price by + 50-100% or -50% in one day.
Huge volatility in the crypto market is observed infrequently: for a couple of months for several years.

I do not understand you. Volatility is precisely the change in the price of an asset!

In general, this applies to all short-term traders (not only shorters).

Due to the volatility of the market is around the clock activity, for the trader there is no need to expect the right moment, they work in the short term.

The market is so arranged. If someone earns money, someone pays for it. In addition, there are infrastructure payments. In cryptography, these are exchange fees, the cost of a transaction (gas) in a blockchain ...
Thus, traders and investors in general get less money from the market than they place in the market. It follows that few people can make money in the market.

I do not understand you. Volatility is precisely the change in the price of an asset!

An experienced trader can always find opportunities to buy in a falling market and for short in a growing market.
It is even easier for me to find a setup vs the market, since in this case the idea of ​​an asset with this setup is clearly visible.

And for me the hardest thing is to choose the right asset on the exchange that can potentially make a profit.

How can institutionalists increase liquidity? They also need it, like other market participants. It can be very expensive for them to artificially increase liquidity - an additional risk in this risky market.
We need real use of cryptocurrency with real turnover.