I use a rubber strap wrench.  Cinch it tight to the filter.  Push or
pull, but in your case, counter-clockwise.  Depends a lot on how much
room you have to work in, what kind of tools you can get in there.

Since these filters are only supposed to be mounted hand tight, one
wonders how you cross-threaded it so badly that a screwdriver through
it won't turn it off.

Worst case scenario, a chain wrench, which will absolutely demolish
the filter, but also absolutely remove it.

Lg

If the screwdriver doesn't work, your last hope is to just destroy the
filter completely and try to "walk" the baseplate off with a dull
chisel or punch.

Once you get it off take a look at the threads on the stud that the
filter mounts on; if it is indeed cross threaded you may need to
replace that stud.  Having a filter blow off is Not Fun; the only
redeeming thing about the situation is your engine generally develops
its highest oil pressure on a cold start so it will leave you stranded
in your driveway, not the highway.  But if it's at all questionable I
would replace it.

good luck

nate

I suggest using a filter wrench if you haven't tried that yet. If you
need more leverage, extend it w/ a pipe or bar.
RH.