Moving everything into BTC

Im down like 65% now and my portfolio exists off 30 percent SOL%, 23% LINK, 22% ETH only 16% BTC and 8 percent in BONK (only down 30%). Im wondering if its time to cut some losses and move it all into BTC sinds a long bear is probably ahead and altcoins are to unpredictable. BTC is at a good price to do this but these alts have bled a lot more relative to BTC. Im really doubting what to do here because doing this will make recovery to break even way harder but I plan to lump sum at 45000 to almost double portfolio. BTC price needed would go down from ~$170000 to ~117000. Would you stay in the alts at this point or convert I have done my personal research but am at a loss here