I feel it was a temporary correction which took place after altcoins went bullish especially XRP and XLM which gained over 100% in last one week.
Because those 2 coins have reasons why they were pumped last week until today, so there is nothing to be surprised about that.
I'm really interested to see what would happened in 2021 instead. With so many altcoins are going to get forked/upgraded later and that means there is a sign/signal for us to grab some coins whose having an upgrade. But be careful, just like you said there will be a correction on some coins and it will test your mental.
yes, i think 2021 will be the year of bitcoin and altcoins, especially for solid altcoins project such as ethereum and bnb
by the way, about the corrections, i think if the corrections is acceptable, wich mean do not go down hard, i think thats okay and not a big issue for me