Though the market at this point might be encouraging but that does not mean that altcoin is dead, the price of altcoin is been controlled by bitcoin uptrend, so you don't expect altcoin to increase in their price when bitcoin is still hovering and fluntuating between the price of 40k to 44k in the recent days, people tends to become more interested to invest in other cryptocurrency when bitcoin appreciates in price, if you can remember when bitcoin entered 49k earlier this year some people started making more profits in their existing altcoins and shitcoins, I believe most of them invested more, so op, this how this things works.
There are more investors who focused with shorting alt projects believing that when the time Bitcoin starts to pump up the market will be good and they will manage to earn a lot, and by looking at the current trend it seems that the movement is favoring those investors who collects good quality alts as the value is now moving upwards.
It's more on how you do your research and how you trust the system, the more you engage yourself the more you will anticipate what directions the market will proceed.
Take time and try to sort around, there are still good assets that you can buy and hold for future investment.