living organisms over 6000 (or 12000) years old - thoughts?

this is something that's always confused me about creationism. there are organisms, including organisms alive today, that are over 6000 years old - some by a lot.

an example just off the top of my head is Anoxycalyx joubini, a type of glass sponge from antarctica. estimates have placed some individuals as ~13000 (DOI: 10.2312/BZPM_0434_2002) years old (which is over double the creationist's earth age).

there are also those worms that were thawed from ice 30000-40000 years old (DOI: 10.1134/S0012496618030079).

plus there are colonial organisms that have lived for longer, such as the pando aspen forest (DOI: 10.1038/s41598-017-04871-7) or those honey mushrooms in oregon (i can't find the paper so take it with a grain of salt but supposedly it was by Greg Whipple).

thanks in advance for any responses, i'm looking forward to reading them! ^^