Yes, God could use America’s enemies to destroy the United States of America, if homosexuality is not illegalized.
God used Israel’s enemies to destroy Israel, when Israel went away from God’s Law.
Nothing happens without God’s approval. If North Korea develops ICBM’s that can hit Washington, DC, it is because God allowed this to happen.
The Book of Isaiah is clear that God built up Israel’s enemies Himself in order to punish Israel because Israel went away from God’s Law.
God punishes believing nations by giving power and military advancement to its unbelieving enemies. God uses unbelieving nations to punish believing nations. This is how God acts, as shown in the Holy Bible.