Yes, they survived the longest and worst bear market in history! Now I believe that altcoins will have only good times, investors will come back to the market and see that altcoins survived and that they are stronger than anytime before. A lot of coins upgrading to the new chain: ETH 2.0, NEO 3.0, Tron 4.0, IOTA 2.0. 
But I don't understand why there are so many people who like to invest in bullshit projects like that in this market.I say some reason for you. The thing to note first is that nobody knows for sure a bullshit project because some project don't give exact clue of bull shit project. Again you some of the coins you mentioned are high and top there , to buy them is really difficult because of high price.