Exactly my thought whenever we see a show like Supergirl or Superman & Lois that the government is stockpiling weapons and kryptonite to deal with Kryptonian level threats and Clark or Kara have a sad and I'm like, 'It's not for *you* dummy, it's for Zod or those Daxamites, or any of the dozen other threats running around at your weight level, definitely including *other* rogue xenophobic 'want to terraform our planet, kill everyone and recreate Krypton here' Kryptonians!'
As for whether or not Batman has an 'answer' for Wonder Woman or the Flash, I didn't even know they were questions.
And does the Question have an answer for them? Or just more questions?