Dangerous to whom?? There is zero chance that Ukraine is going to attack the United States, a member of NATO, or any of our allies anywhere. Zero. Not only do they have no motive, but they don't have the capability either. No nukes, no navy, and dependent on us for the modernization of their military.
The only party in this war that has threatened harm against the United States is Russia. Further, it is directly aligned with nations such as Iran and North Korea that have called openly for the destruction of the United States. We are the Great Satan according to them, remember? Or have you just forgotten?
And those countries that openly hate the U.S., that have killed and have plotted to kill Americans, are the ones with which Russia has chosen to ally. And you think Ukraine is the danger to us??
GTFO.
Oh, please! YOU GTFO. Done with you, war thumper...
And if conventional attack and nuclear threats work in Ukraine the same gameplan could be used against South Korea and Taiwan. Then Moldova, the Baltic States, etc.