Stop deluding yourselves, the altcoin market is not coming back, and if it does come back, you better dump whatever you have left because there are no chances of it pumping ever again beyond an exit scam. Smart money has learned to stop pumping shitcoins. Altcoin continue to sink against BTC. Dollar valuations don't matter because altcoins have no liquidity outside of BTC, so with BTC pairs going down you are going to lose purchasing power during the process. And still, they eventually keep going down against assorted fiats too.
Bottomline is, you are holding a massive hot potatoes bag by having a diversified "crypto portfolio" in altcoins. Sure there will always be the odd ones that pump, but that's worse than going to the casino. You might as well trade regulated penny stocks if you want to bet on low caps going to the moon, where there are less chances of getting screwed over by massive scammers. At least you surely lower exchange rate risk (and most of those shitcoins are listed in shady exchanges).
If we are looking for last few years about altcoin growth then yes you are right. But there was a day people talking about bitcoin will be dead when it was around 4k couple of months ago. Now see where it is now. Tow years ago bitcoin was like 20k so it's hard to judge so early i think. I always believe good altcoin have a great future. Just need some time to back in track. But yes holding some shit coins or low quality coins is really worthless and risky now days.