getoffyour
Focus on problems instead of solutions
Manipulate and put others down
Use people
Look up to Machiavelli
Passively consume food, media
Burn bridges
Judge others without all the facts; without due process
Act without thinking
“Anti-pattern” https://en.wikipedia.org/wiki/Anti-pattern
How f difficult is it to sign a zone?
DNSSEC isn't perfect (indeed it only provides assurances of record integrity and doesn't secure the channel); but it's certainly better than nothing, than no signature at all.
If route53 can't or won't or doesn't have to because they don't want to implement DNSSEC, route53 is not suitable for .gov and .mil domains.
It's really that simple.
I get that you want to use terraform; I don't see why you think route53 is the only DNS that terraform works with.