maybe because of the large number of users who make transactions on uniswap, lately eth gas costs are very expensive and most of them make transactions on the uniswap network. but I believe that someday the cost of eth gas will go down, it's only a matter of time.
No it won't. At least in the near future until Ethereum 2.0 will become main Ethereum chain. So meanwhile I suggest to use TRON. It's much cheaper.
Of course, the Tron block chain is faster and their charges are very less, but every coin is not listed in Tron. Even though ETH fees are high but many people are still spending their money and buying their desired coin, the previous 6 months were very crucial for the ETH because their fee seems to be very high.