I think many altcoins are at their bottom or almost there and it is high time to accumulate some coins. Some of the older coins might have some potential to perform well in the upcoming alt season, but I am more focused on new coins. I agree with your thinking that it is more profitable to invest in newly launched (after the 2021 alt season) coins than flagging a dead horse. I purchased a few coins approximately a month ago when the market dipped and have shortlisted a few more potential coins in case we see another dip in the coming days.
Even though BTC is not totally dumped right now, alts are still more fragile than it, so I'm going to agree with what you have said there first. You said it is high time to accumulate coins but I think "high" is a wrong word to use, or a typing mistake. The proper word choice BTW is "good". If we believed that alts are now on their bottom, we must buy at full force and not just buy some but we can buy some for a while if believe that they are now close at their bottom point and we can just use the rest of our funds by the time we get there.
Even though in the crypto market, there are now lots of crap coins and new coins, I still think that the number of good coins and old coins are big right now because cryptos have existed for over 1 decade already. I won't also say that their potential is only "some" because that can sound like a few only but old and good coins have a huge potential with or without the alt season. Alt season is only like a boost on them but it will all boil down to the potential of the crypto like if what they are offering (their technology), or is the team behind them has a solid background and they are dedicated to push their projects potential over their limits, etc...